Bird Diary vs GlideAxisArray
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Bird Diary
This app allows you to write letters to your past, present, or future self. It offers a minimalist journaling experience with text, photos, and moods, and securely stores your messages for later retrieval.
- Minimalist text, photo, and mood journaling
- Send messages to the future
- Save favorite letters
- Revisit past entries
- Secure local and iCloud sync
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Write a letter to your past, present, or future self! The blackbird that stole time will one day return with your secrets. 1、Easy Journaling: Minimal diary with text, photos, and moods 2、Time Capsule: Each letter is a message from the heart 3、Future Letters: Send messages to the future, delivered by the blackbird 4、Favorite Moments: Save special letters with one tap 5、Look Back: Revisiting old letters might reveal something new 6、Secure Storage: Local and iCloud sync for safe, permanent storage Terms of Service: https://timekeep.notion.site/User-Agreement-Privacy-Policy-of-Bird-Letter-APP-1f85858d47868066b29bc89f3b44fd3a?pvs=4 Privacy Policy: https://timekeep.notion.site/User-Agreement-Privacy-Policy-of-Bird-Letter-APP-1f85858d47868066b29bc89f3b44fd3a?pvs=4 Email: 3578027083@qq.com We welcome your feedback and suggestions anytime!
GlideAxisArray
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Lift, efficiency, and atmospheric conditions are analyzed together in this specialized computational tool, created for glider pilots seeking maximum performance, for sailplane designers refining aerodynamic characteristics, for competition soaring athletes planning efficient routes, and for aviation enthusiasts exploring the science of unpowered flight. It examines how rising air influences climb performance, how glide characteristics change across different speeds, how ballast affects handling and efficiency, and how weather conditions shape progress over long-distance flights. These connected insights help reveal the balance between altitude, energy management, and speed, enabling a deeper understanding of soaring performance under a wide range of conditions.
Screenshots
Verdict
The clearest difference is in-app purchases: GlideAxisArray at none against Bird Diary's 3. GlideAxisArray also leads on iOS requirement (13.0 vs 17.0). On price, ads 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. Bird Diary sells 3 in-app purchases, starting at $1.99 per month. GlideAxisArray asks for nothing beyond the download.
| Parameter | Bird Diary | GlideAxisArray |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 3 weeks | — |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 17.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 32 MB | 11 MB |
| Age rating | 4+ | 4+ |
| Developer | 帆 邱 | Sultan Al Suwaidi |
In-app purchases
Bird Diary
- Black Bird Pro$1.991 Month
- Black Bird Pro7 Days trial$5.991 Year
- Black Bird Pro Lifetime$7.99
GlideAxisArray
No in-app purchases
