Air Tree vs SkyLetter
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Air Tree
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Get your own christmas tree! By using this app, you can quickly set up a Christmas tree about 2m high. However, ornaments of the tree must be obtained with a slot machine. Let's challenge the slot by tapping the boxes which is hanging from the beginning. If you can match the symbols, you will get a nice ornament. But If you fail, your tree will be decorated with junk objects. Ornaments can be decorated in 35 places in all. If you can decorate everything cleanly, you will be able to get a special ornament on the top of tree. * This application requires iPhone compatible with AR function (iPhone 6s or later) . Please check before downloading.
SkyLetter
Create personalized messages drawn in the sky with airplane contrails. Share your creations as videos or photos on social media, perfect for sending unique greetings or declarations.
- Draw messages in the sky with contrails
- Share creations as video or photo
- Personalize messages for friends
- Unique social media content
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【Deliver your message in the cloud】 "SkyLetter" is an application that draws a message in the sky with contrail. Look up at the sky after entering the message. The airplane which received your message there draws a message with a trail of contrail. Why don't you draw in the sky the names of you, your friends, and the messages you want to convey? You can share it as a video or photo on social media. Let's take a photo that is drawn message and send it to many people. 【Recommended environment】 Support for iOS12.0 or later / iPhone 6S later. If your device is under iOS 12.0, please update and install.
Screenshots
Verdict
The clearest difference is ads: SkyLetter at none against Air Tree's shown. SkyLetter also leads on update cadence (fortnightly vs every 12 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Air Tree ships an update every 12 months, SkyLetter fortnightly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | Air Tree | SkyLetter |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 25.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 12 months | Fortnightly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 13.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 138 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Tahito Aoki | Kiyotaka Watanabe |
In-app purchases
Air Tree
No in-app purchases
SkyLetter
No in-app purchases
