SkyLetter vs echopaint
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
echopaint
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EchoDraw is an interactive art and design app that lets you draw with perfect symmetry, reflection, and feedback effects in real time. Every stroke echoes across the canvas, creating mesmerizing shapes, patterns, and living artwork. Whether you’re sketching ideas, exploring geometry, or just relaxing through creative motion — EchoDraw makes it effortless to transform simple lines into flowing, mirrored compositions. Perfect for artists, designers, and anyone who loves visual experimentation.
Screenshots
Verdict
The clearest difference is update cadence: echopaint at weekly against SkyLetter's fortnightly. SkyLetter's advantage is iOS requirement (12.0 vs 17.4). On price, ads, in-app purchases and device support 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.
SkyLetter ships an update fortnightly, echopaint weekly. The most recent releases landed on October 24, 2026 and October 28, 2026 respectively.
| Parameter | SkyLetter | echopaint |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 25.0% of reviews | — |
| Number of ratings | 1 — better | — |
| Update frequency | Fortnightly | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 12.0 — better | 17.4 |
| Further details — not scored | ||
| Size | 45 MB | 1 MB |
| Age rating | 4+ | 4+ |
| Developer | Kiyotaka Watanabe | Riley Williams |
In-app purchases
SkyLetter
No in-app purchases
echopaint
No in-app purchases
