Surest vs Tidemark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Surest
Compare prices for doctors and health services to find savings. View copays in advance, access your digital ID card, and track claims. This plan offers no deductible and access to a broad national network.
- Compare doctor and service prices
- See clear copays in advance
- Access digital ID card
- View current claims information
- No deductible
- Access UnitedHealthcare network
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Savings start here: Get the free Surest app. With the Surest health plan, prices for doctors and health services are available on the app, so you can compare options. See where you might be able to save money by selecting a different provider or service location, then decide what’s right for you and your budget. You can also see current claims info in the app, and easily access your digital ID card. Plan highlights: • No deductible • See clear copays in advance • Access the broad, national UnitedHealthcare network • Lower prices indicate providers evaluated as higher-value, based on quality, efficiency, and overall effectiveness of care • Generally, your copays are bundled so you pay a single price Get the most benefit from your benefit. Download the app today.
Tidemark
This app helps you stay hydrated by showing you your target water intake level throughout the day. It focuses on guiding your progress rather than logging every sip, making hydration simple and manageable.
- Real-time hydration guidance
- Personalized pacing
- Track multiple bottles
- Daily streaks
- Customizable goals
- Home screen widgets
- Apple Health integration
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Most water trackers make you log every sip. Tidemark helps you stay hydrated without turning it into a chore. Set your daily water goal, wake time, sleep time, and bottle size once. From there, Tidemark shows you exactly where your water bottle should be throughout the day so you always know if you are on track. Instead of focusing on how much water you already drank, Tidemark focuses on where you should be right now. Simple. Calm. Easy to follow. HOW IT WORKS • Set your daily water goal • Choose your wake time and sleep time • Add your bottle size • Open the app anytime to see your current target fill level • Log bottles only when you finish them No sip counting. No annoying reminders every few minutes. No complicated charts. Tidemark keeps hydration steady and manageable from morning to night. FEATURES • Real-time hydration guidance • Personalized pacing throughout your day • Track multiple bottles with ease • Daily streaks to build lasting habits • Fully customizable goals and schedules • Home screen widgets for quick progress checks • Apple Health integration for automatic water logging • Beautiful dark mode support • No account required TIDEMARK PRO Unlock additional customization and widgets with Tidemark Pro. • Custom accent colors • Small and medium home screen widgets • 7-day free trial for new subscribers • Weekly, monthly, and yearly plans available • Cancel anytime in Apple ID settings PRIVACY FIRST Tidemark does not collect your personal data. If you choose to connect Apple Health, Tidemark only writes your water intake. Your health data is never read, stored, or shared. Stay hydrated without overthinking it. Download Tidemark today!
Screenshots
Verdict
The clearest difference is in-app purchases: Surest at none against Tidemark's 3. Surest also leads on ratings volume (6.5K vs 1). Tidemark's advantage is rating (5.0 vs 4.6) and update cadence (every 9 days vs every 3 weeks). 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. Tidemark sells 3 in-app purchases, starting at $0.99 per 7 days. Surest asks for nothing beyond the download.
Tidemark holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Surest has 6.5K ratings behind it against 1, so its average is the more settled of the two.
Surest ships an update every 3 weeks, Tidemark every 9 days. The most recent releases landed on October 17, 2026 and October 7, 2026 respectively.
| Parameter | Surest | Tidemark |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (6.5K ratings) | 5.0 (1 ratings) — better |
| Positive reviews | 14.2% of reviews | — |
| Number of ratings | 6.5K — better | 1 |
| Update frequency | Every 3 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Freemium |
| Devices | iPhone | iPhone |
| Requires iOS | 16.6 — better | 17.0 |
| Further details — not scored | ||
| Size | 94 MB | 4 MB |
| Age rating | 12+ | 4+ |
| Developer | Bind Benefits, Inc | Sukhleen Kaur |
Customer experience
Surest
Tidemark
Bugs and requests
Surest
Reported bugs
5 issues- Login screen freezes
- App crashes on launch
- Incompatible with iOS 26
- Registration not working
- Redirects to blank screen after login
Requested features
3 requests- Add ID card to Apple Wallet
- Integrate pharmacy info
- Ability to save favorite providers
Tidemark
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Surest
No in-app purchases
Tidemark
- Tidemark Pro Weekly$0.997 Days
- Tidemark Pro Monthly$3.991 Month
- Tidemark Pro Yearly7 Days trial$29.991 Year









