Herkul vs One Line a Day Diary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Herkul
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Herkul.org mobile app was developed by the Herkul Foundation to bring the written, audio, and video works of the Honorable Fethullah Gülen Hocaefendi together with users under a single roof. With the app, you can access all of Hocaefendi's works in an organized, systematic, and easy way; follow the comprehensive content archive anytime through your mobile device. Main sections in the app: • The Holy Qur'an • Risale-i Nur Collection • Pırlanta Collection • Devotions and Prayer Books • Prayer Times and Qibla Compass • Herkul Radio • Communal Prayer Circles • Advanced Voice Search Feature • Apple Watch App In addition, a rich digital library is offered with continuously updated content and an enhanced user experience. Thanks to its clean, modern, and user-focused interface, it provides fast, secure, and practical access to spiritual content.
One Line a Day Diary
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A one-line-a-day journal — write a single sentence about today and revisit it for years. Small enough to keep. - One line a day — the journal small enough to actually keep - Write today's entry right on the home screen - Browse your whole history, clean and scrollable - 'On this day' flashback across past years (Premium) - Daily reminder, export and themes (Premium) - Fully offline — no account, no cloud, no AI rewriting your words Who it's for For people who want to journal but never stick with it — one sentence a day is small enough to keep. Subscription Premium is available as a monthly ($4.99) or yearly ($19.99) subscription. Subscriptions auto-renew unless you cancel at least 24 hours before the end of the period. You can cancel anytime in your Apple ID Subscription Settings — no charge on the first day if you cancel during the introductory window. Payment is charged to your Apple ID. Any unused portion of a free trial is forfeited when you purchase a subscription. Privacy: everything stays on your device by default. No analytics SDKs, no cross-app tracking. Privacy policy at https://bestpaid.app/legal/privacy. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Screenshots
Verdict
The clearest difference is in-app purchases: Herkul at none against One Line a Day Diary's 3. Herkul also leads on ads (none vs shown) and update cadence (every 3 days vs every 5 weeks). On price 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. One Line a Day Diary sells 3 in-app purchases, starting at $2.99 per 7 days. Herkul asks for nothing beyond the download.
Herkul ships an update every 3 days, One Line a Day Diary every 5 weeks. The most recent releases landed on November 1, 2026 and October 19, 2026 respectively.
| Parameter | Herkul | One Line a Day Diary |
|---|---|---|
| Price | Free | Free |
| Rating | 4.9 (412 ratings) — better | — |
| Positive reviews | 91.5% of reviews | — |
| Number of ratings | 412 — better | — |
| Update frequency | Every 3 days — better | Every 5 weeks |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, Apple Watch — better | iPhone |
| Requires iOS | 18.5 | 17.0 — better |
| Further details — not scored | ||
| Size | 106 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | Herkul.org | Vasilii Polovnikov |
In-app purchases
Herkul
No in-app purchases
One Line a Day Diary
- Premium$2.997 Days
- Premium$3.991 Month
- Premium$5.991 Year
