MyTESY vs Days Mark
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
MyTESY
Control and manage your smart TESY appliances remotely. Set personalized weekly heating schedules or utilize energy-efficient Eco modes for water heaters and convectors. Monitor and control your devices in real-time from anywhere.
- Remote appliance management
- Personalized weekly programming
- Energy-efficient Eco modes
- Real-time status monitoring
- Control multiple TESY Cloud products
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The all new MyTESY App helps you seamlessly program and manage your TESY Cloud appliance. MyTESY App is available for the Cloud series electric water heaters of BiLight, BelliSlimo and ModEco, as well as for Cloud electric convectors FinEco, LiveEco, ConvEco, HeatEco and FloorEco. Connecting to the MyTESY App is easy and intuitive. You can quickly set a personalized weekly program or simply select an Eco mode and let your smart TESY appliance do the rest for you in an energy efficient fashion. Join all your TESY Cloud products and get real-time status and control of your appliance(s) wherever you are.
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 MyTESY's every 2 months. 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.
MyTESY ships an update every 2 months, Days Mark daily. The most recent releases landed on October 24, 2026 and October 12, 2026 respectively.
| Parameter | MyTESY | Days Mark |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (3 ratings) — better | — |
| Positive reviews | 10.7% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 2 months | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.0 — better |
| Further details — not scored | ||
| Size | 34 MB | 30 MB |
| Age rating | 4+ | 4+ |
| Developer | Tesy OOD | Ultrex |
In-app purchases
MyTESY
No in-app purchases
Days Mark
No in-app purchases
