GemSpectr vs AI Writeon
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
GemSpectr
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L'application GemSpectr permet d'obtenir le spectre de pierres précieuses et semi précieuses facilement et rapidement. Elle permet également d'enregistrer ses spectres et de se constituer sa propre base de données. Cette application fonctionne nécessairement avec le dispositif GoSpectro commercialisé par la société GoyaLab. Son système d'auto-calibration de la longueur d'onde grâce à une lampe fluo-compacte permet d'obtenir une précision des longueurs d'onde à +/- 8nm.
AI Writeon
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I can write anything for you, just describe what you need The more detailed the description, the better. You can write a description in any language, I will send the results in the language you chose in the app settings Description examples: "Advertising description of green apples" "Publicistic text about methods of fighting corruption in the prosecutor's office" "Text for an Instagram post about the health benefits of avocados" "Title and text of the second chapter of the essay on the topic "History of the development of cybernetics in the 60s of the 20th century"" "A fantasy story about a passionate love between a frog and a viper" "The text of the report on the prospects and threats posed by the development of artificial intelligence" You may purchase an auto-renewing subscription through an In-App Purchase. • Auto-renewable subscription • 1 month ($4.99) • Your subscription will be charged to your iTunes account at confirmation of purchase and will automatically renew (at the duration selected) unless auto-renew is turned off at least 24 hours before the end of the current period. • Current subscription may not be cancelled during the active subscription period; however, you can manage your subscription and/or turn off auto-renewal by visiting your iTunes Account Settings after purchase • Privacy policy and terms of use: https://github.com/eonMobile/ideas/blob/main/writeon_privacy_policy.md • Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: GemSpectr at none against AI Writeon's 1. On price, ads, 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. AI Writeon sells 1 in-app purchase, starting at $3.99 per month. GemSpectr asks for nothing beyond the download.
| Parameter | GemSpectr | AI Writeon |
|---|---|---|
| Price | Free | Free |
| Update frequency | — | Every 13 months |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13.2 | 12.0 — better |
| Further details — not scored | ||
| Size | 37 MB | 43 MB |
| Age rating | 4+ | 17+ |
| Developer | Thomas Kuntzel | Svitlana Skibа |
In-app purchases
GemSpectr
No in-app purchases
AI Writeon
- One month subscription3 Days trial$3.991 Month









