primr vs Mail Sentinel
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
primr
Enhance your focus and productivity with binaural beats and guided meditation. Track your focus improvement over time and unlock new sound packs designed for creativity and productivity.
- Binaural beats for focus
- Guided meditation sessions
- Focus rating after each session
- Track focus improvement over time
- Future sound packs for creativity
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Combining the power of binaural beats and meditation, primr increases your ability to get in the zone and focus on what's important. After each session, you'll get rated on how focused you were and as time goes by you can track how your ability to focus has improved. In future releases, we will be adding binaural beat sound packs that are designed to help improve your creativity and productivity.
Mail Sentinel
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Take control of your inbox with Mail Sentinel - the powerful email scanner that helps you find hidden subscriptions, detect sensitive credentials, and protect your digital privacy. KEY FEATURES: • Smart Email Scanning Automatically scan your inbox to discover mailing lists, newsletters, and subscriptions you've accumulated over the years. • Password Detection Identify emails containing usernames and passwords - like welcome emails and account confirmations. • Credential Alerts Get notified about emails containing sensitive information like OTP codes, verification links, and security alerts. • One-Tap Unsubscribe Quickly unsubscribe from unwanted mailing lists with direct links to unsubscribe pages. • Secure by Design Your credentials are stored safely in your device's Keychain. We never store your emails permanently. • Google Sign-In Support Connect your Gmail account securely with Google OAuth - no app passwords needed. Stop drowning in unwanted emails. Download Mail Sentinel today.
Screenshots
Verdict
The clearest difference is iOS requirement: primr at 10.0 against Mail Sentinel's 17.0. 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.
| Parameter | primr | Mail Sentinel |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (2 ratings) — better | — |
| Positive reviews | 83.3% of reviews | — |
| Number of ratings | 2 — better | — |
| Update frequency | Every 2 months | — |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 10.0 — better | 17.0 |
| Further details — not scored | ||
| Size | 39 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Daily Prompt Ltd | Sky Benson |
In-app purchases
primr
No in-app purchases
Mail Sentinel
No in-app purchases









