Welcome to the latest edition in our series on paid iPhone and iPad apps on sale for free. Today, you’ll find nine new iOS apps that typically come at a cost, but each and every one is free today. And if nine just won’t cut it, be sure to check back in yesterday’s post, where you’ll find a few more paid apps that are still on sale for free.

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These are paid iPhone and iPad apps that have been made available for free for a limited time by their developers. There is no way to tell how long they will be free. These sales could end an hour from now or a week from now — obviously, the only thing we can guarantee is that they were free at the time this post was written. If you click on a link and see a price listed next to an app instead of the word “get,” it is no longer free. The sale has ended. If you download the app, you will be charged.

Castro

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Normally $3.99.

Oisín and Pádraig are hard at work on Castro 2 — it’s a big project and it’s going well, but it’ll take a few more months to finish. We didn’t want to wait any longer to get some important iOS 9 and iPhone 6S features to you, so here’s Castro 1.5. We’re also making a big change to the pricing model.

iOS 9 Features
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– Spotlight search: You can now search for your subscribed podcasts and the back catalogue of their episodes from the iOS home screen’s spotlight search.
– In-app Safari: Follow links without leaving the app. Swipe from the edge of the screen to close the browser. You can opt out in settings if you’d prefer to open links in Safari app instead.

iPhone 6S/6S+ Features
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– 3D Touch peek and pop throughout the app. Swipe up when peeking a podcast or episode to quickly perform actions without leaving the screen you’re on.
– 3D Touch app icon shortcuts: Quickly play/pause, start the sleep timer, search with your clipboard, or if you’re feeling adventurous try Lucky Dip to play a random episode from one of your podcasts.

Download Castro

PDF Expert 5

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Normally $9.99.

PDF Expert 5 is a must-have app for anyone who reads, annotates or edits PDF documents on iPad or iPhone. It allows you to mark up documents with highlights and handwriting, insert text and stamps, sign and even merge PDFs. Moreover, PDF Expert 5 is the best choice for filling out PDF forms right on your iPad and iPhone.

“PDF Expert 5 is one of my must-have iPad apps and a desktop-class PDF reader” – MacStories.net

“I was blown away at how easy the app is to use” – MakeUseOf.

“The best app for managing, editing, and reading PDFs on your iPad” – The Sweet Setup.

You can open various file formats such as iWork, MS Office, PowerPoint, text files, images, even music and video files, etc. Get these files from desktop computers, email attachments, documents on Dropbox, OneDrive, GoogleDocs and “Open in” from other applications.

PDF Expert 5 provides the best experience for filling out PDF forms. Text fields, checkboxes, radio buttons and other form elements work as you expect and all the information you enter is saved within the form. Even complex interactive forms with Javascript work impressively well.

With PDF Expert 5 you can:

– Highlight Text –
Mark important things in books, journals or documents you want to review.

– Fill Forms –
Work with static PDF forms created in Adobe Acrobat.

– Create Notes –
Add comments to the texts you read.

– Draw with your finger-
Use it to make handwritten notes or highlight text in scanned books.

– Make Bookmarks –
Create table of contents for your document right on iPad and iPhone.

– Review Documents –
Mark up errors and place special emphasis on important sentences.

-Sign Documents
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Use digital signatures to sign contracts and agreements on the go.

Other things PDF Expert 5 lets you do:

+ Read PDFs with ease
PDF Expert 5 has one of the best PDF viewers for iPad and iPhone. It opens large files, supports full text search, handles PDF links and outlines, opens password-protected documents and extracts text from PDFs.

+ Copy Files From Mac or PC via Wi-Fi and USB
Use iTunes file sharing to transfer files directly to your iPad or iPhone via USB cable. As an alternative connect your iOS device running PDF Expert 5 via Wi-Fi and operate it like a wireless flash drive. No additional software is required.

+ Save Email Attachments
Open attachments directly from the Mail app. Also, you can open PDF files from any other application on the iPad or iPhone via “Open In…” dialogue.

+ Sync your files with various cloud services
PDF Expert 5 allows you to download and upload files from Dropbox, OneDrive, Google Drive and other services. If you use more than one cloud storage, PDF Expert 5 will handle all of them.

+ Share Files With Your Friends
Email files directly from PDF Expert 5 with all annotations you made.

+ Protect Documents with Password and Encryption
Restrict access to PDF Expert 5 with a password to protect your files from unauthorized reading. Enable iOS Data Protection to encrypt everything while your iPad or iPhone is not in use.

+ Text To Speech
You can listen to e-books or audio files on the road or when you don’t feel like reading. PDF Expert 5 intelligently processes PDF books and uses iOS text- to-speech API to read them aloud.

And one more thing:

• Review Mode •
The Review Mode allows you to mark up PDF documents in a very special way. Just tap anywhere on the text where you need changes and correct it in the text editor. The text that you delete is marked as removed while everything you add is shown as new text in different colors. Currently available only on iPad.

Download PDF Expert 5

Feeds for Instagram

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Normally $0.99.

Browse Instagram using powerful yet simple filter based on geography and geotags. You can easily find specific venue or specify search radius to obtain all photos made here.

Next, the app can aggregate posts from all tags and geo you selected into a single feed.

**ATTENTION: free for a limited time!

FEATURES:

– Powerful venue search UI: nearby selected/current location, search in categories, global search (pull the list down to activate)
– Multi-venue feed: aggregate recent media from the selected venues into a single feed
– Hashtag feeds: mix geotag and hashtag media feeds to get most out of Instagram
– Easy to like mechanics
– Instant user preview with all needed details
– Media reposting

Download Feeds for Instagram

Music Tube

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Normally $0.99.

Music Tube allows you to search and listen to millions of songs on YouTube for free!

Search for artists, tracks, albums!…
Discover new music every day in genres, channels and user playlists!

Features:
– Full featured in app media player: repeat one/all, shuffle…
– Create & Manage Playlists – Easy to Add/Remove any song, Unlimited Playlist…Make dance, workout, travel/car, party playlists.
– Pull to Refresh list of songs.
– Auto Play Video in Full Screen mode when rotate your devices.
– Seamless listening to millions of free songs.
– Background playback control & track info – use Music Tube Player with headphones and speakers!
– Quick Youtube Search – Find any song.
– Browse dynamic top 100 list – get all the hits worldwide and in your country.
– Browse familiar music categories.
– Browse trending videos list – never miss a good fresh tune.
– Add songs to favorites – always have favorites tracks by your hand.
– Watch high quality HD videos.
– Airplay & CarPlay support.

Download Music Tube

Sunshine Camera

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Normally $0.99.

Everyone is photographer!
Whether you’re an experienced photographer or a novice You will fall in love with shooting.
Sunshine Camera is a professional photographer, a good assistant.
It is also a new starting point for photography beginners.
Life is more exciting because photography.It will record every bit of life.
Professional camera parameter adjustment and real-time display
Comparable SLR camera parameter adjustment, to accurately adjust the camera’s ISO, exposure time, exposure compensation, focal length, white balance parameters.

Real-time picture brightness histogram
Photo luminance histogram can let us know a clearer picture brightness information.

The focus and exposure point setting
It can accurately set different focus and exposure point.

Rich camera settings
Rich camera settings,timer,burst,location,face recognition,photo quality,histogram, volume keys settings more quickly and conveniently.

Photo editing features
Rich photo post-processing and editing features, filters, commissioning, watermark word, funny emoticons, photo cropping, hand-painted, waiting for you to explore.

Download Sunshine Camera

Tesla Wars HD

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Normally $0.99.

The Tesla Wars 3.2.0 – hours of zapping fun on your fingertips!

Gather up all the strategic thinking and all the reaction speed you have to beat off the endless attacks of merciless enemies armed with chainsaws, fuel tanks and missiles. Shoot the sole Tesla Tower charges to crush the land, air and even underground strikes. Bash the black swarm with mines, toxic bombs, freezes, electromagnetic storms and other Special Weapons! Find out the perfect tactics to collect all the achievements and reward money. Challenge your friends to prove that you’re the Number One!

Anytime, anywhere Tesla Wars HD will keep you addicted

THE GAMEPLAY HIGHLIGHTS

– Unique world and the amazing game atmosphere. Hilarious sound effects and flashy graphics are here to hypnotize you

– Breathtaking gameplay with an unbelievable number of levels. New challenges will keep you excited with the Tesla Wars

– Spice up the action with new flavors. Each level you meet new enemies, new weapons and new tactics

– Reverse the fight with the aces up your sleeve. Use the Special Weapons if zapping is just not enough

– Boost your progress if you’re stuck. Use extra resources for energy refill, perimeter repairing and weapons upgrading

– Challenge your friends. Get all the achievements and climb up to the top of OpenFeint and Game Center Leaderboards

– Feel free to choose your way. Use different game profiles to try out various strategies

Download Tesla Wars HD

Beautiful Nature Wallpapers

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Normally $0.99.

Are you looking for amazing wallpapers to spicy up your device?

Or just looking for a cool way to pimp up your gadget?

Well look no further because this app will provide you with the best themed images you need.

Features:

● Compatible with iOS 8, iOS 7 & iOS 6

● Optimal for all iOS devices (iPhone, iPod Touch & iPad)

● 100+ New wallpapers added everyday

● Wallpapers made to fit both home screen & lock screen

● User friendly interface

● Quick & responsive navigation

● Super fast loading with faster cloud servers near you

● Auto clearance of cached data

● Filter wallpapers as popular, latest & random

● Share wallpapers to Facebook, Twitter, Instagram & Email

● Use wallpapers as photo with any of your phone contacts

Notes:

• Requires iOS 6.0 or later

• Network connection is needed. iPod Touch & iPad users: please connect via wifi

• Tap “Save” button to save photos to your Camera Roll. Then you can set them as your home screen or lock screen

• Some users report that they can’t save wallpapers. To solve this problem – At first go to “PRIVACY” option inside “SETTINGS” in your device, then go to “PHOTO” option and turn “ON” access for this app

• Any feedback is welcome! You can send us any questions or suggestions. We will reply as soon as possible. With your help, we will make this App better and better

• Invite your friends to join us, then enjoy the wallpapers together

• Thanks for using our App. Again, enjoy

Download Beautiful Nature Wallpapers

WorldAirport

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Normally $0.99.

WorldAirport is an essential application for the frequent traveller and airport enthusiasts. Browse the airports of the world on a map. Easily find the airports close to your position.

WorldAirport is a comprehensive and searchable list of the airports in the world, both large and small.

Have you ever wondered about the strange codes on your baggage label when you fly? Ever needed to figure out how far the airport is from the city centre of your destination? Ever needed to find an airport close to your location? Or an airport close to where you want to go on vacation? Or do you just need a fast and easy way to browse through the airports of the world?

Then “WorldAirport” is the app for you!

For each airport a number of details is provided. This includes IATA and ICAO codes, full name, location and region served by the airport, links to Maps, Wikipedia and official airport home page.

The airport information is offline, so you can use it when travelling.

All airport information is pulled from the open and very comprehensive database at OurAirports.com

Download WorldAirport

Perch

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Normally $9.99.

Perch is designed from the ground-up to be always-available to virtually connect office spaces and facilitate natural, unscheduled face-to-face communication among teams – regardless of physical location or time zone. Perch has a bunch of smart, polite features built-in to the software that emulate what it is like to work in the same office environment. Once connected, companies using Perch say that it has reduced their weekly conference calls, need for meetings and made them feel more in sync as a team.

Perch is super simple to set-up and works best on a dedicated iPad. Once installed, you can:

• Mount a Perch iPad on a wall in your offices to create an always-on video portal between spaces. A portal is like a virtual window into another office, room, or floor that enables you to see people in different locations, wave hello, and enjoy spontaneous conversations throughout the day.

• Even when you are not in a live connection, you can still see online portals and ambient activity in each location. Simply tap once on a portal to instantly communicate with your team members or pop-in to the office. No need to dial a number or schedule a call.

• Invite anyone to connect face-to-face using the Perch ShareLink. The Perch ShareLink is a unique URL that let’s anyone request access to your Portal via the web. Once a user clicks your ShareLink, you will receive a live request to connect on your Portal that you can accept or ignore. If you accept the request, you will instantly be connected live.

• On your iPhone – Download Perch on your iPhone and pop-in to company portals while traveling or on-the-go!

–Perch Features–

• Perch is easy to set-up. Anyone can download the app, create a portal and connect with others in a matter of minutes.

• Perch is smart. Perch understands patterns and preferences to intelligently connect spaces together. It’s automated ambience.

• Perch understands social cues. Otherwise muted, It recognizes your intent to speak and automatically activates the microphone, preventing conversations from inadvertently being overheard.

• Perch is polite. Perch always uses two-way video to ensure transparent communication between you and your co-workers. If you can see them, they can see you. In addition, Perch does not record video like a security system does so, you can trust your conversations are private.

• Perch is secure. You need to add and verify your work email address to discover and instantly connect with portals in your company network. But you can invite people to be a member of your organization or have a Perch account to connect with you on Perch. ShareLink’s can only be accessed via a WebRTC supported browser such as Google Chrome or Firefox.

*Note: Perch for iPhone requires iPhone 4s or higher, Perch for iPad requires iPad 2 or higher.

Download Perch

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