Go Library vs Days Mark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Go Library
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GO-Library- Library Management app designed by taking care of the needs of libraries running around all over the world. Go-library has a key feature like, seat management, shift management, member management, auto SMS reminder, whatsapp messages and many more which makes it more useful and convenient to library owner. Also, the app has a special feature of multiple branch management for those running more than 1 library.
Days Mark
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Days Mark - Countdown & Anniversary Reminders (Lunar supported) A simple countdown / anniversary tracker with reminders: birthday reminders, wedding anniversaries, yearly milestones, holidays, and important deadlines. 【Key Features】 • Create and manage events, with Gregorian & Lunar calendar support • Countdown / count-up automatically calculated • Local notification reminders: advance reminders and recurring reminders • Optional cloud sync: sign in to sync your countdowns/anniversaries across devices • Dark mode (follows system) • Languages: English / 简体中文 【Use Cases】 • Countdowns: holidays, exams, trips, paydays, project launches • Anniversaries: birthdays, wedding anniversaries, relationship milestones, work anniversaries 【Privacy & Data】 • Works without an account (local-first) • If you choose to sign in for sync, we may use your email address • For reminders we may use device-related information Support: support@ultrex.tech
Screenshots
Verdict
The clearest difference is update cadence: Days Mark at daily against Go Library's fortnightly. 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.
Go Library ships an update fortnightly, Days Mark daily. The most recent releases landed on October 20, 2026 and October 12, 2026 respectively.
| Parameter | Go Library | Days Mark |
|---|---|---|
| Price | Free | Free |
| Update frequency | Fortnightly | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.0 |
| Further details — not scored | ||
| Size | 92 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Gayatri Software Services Pvt Ltd | Ultrex |
In-app purchases
Go Library
No in-app purchases
Days Mark
No in-app purchases
