Acuva vs Don't Guess
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
Acuva
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Have peace of mind through real-time monitoring of your Acuva by Watersprint water disinfection device. Connect your IoT-enabled Acuva water disinfection device to the Acuva app and monitor the status of your device's health, water and power consumption, and the filter. β’ Get Notifications The quality of water disinfection is our top priority. There is an array of sensors inside the Acuva water disinfection device that monitor its status. The app will keep you informed if the quality of treatment ever becomes compromised. The Acuva app also monitors the water flow rate, calculates the remaining capacity of the filter, and notifies you when it is time to replace it. Additionally, the app keeps track of and displays your power consumption & device operation time and notifies you when you need to replace the UV-LED board(s). β’ Contact us We strive to provide the best customer service. There is a βHelp and Feedbackβ section in the Acuva app that you can always use to reach out to us whenever you need help. The following access permissions are necessary for the Acuva app. β’ Location: To obtain the device connecting Wi-Fi information during device installation β’ Bluetooth: To pair with the device during device installation β’ Notifications: For the enabling of push notification features
Don't Guess
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Stop guessing what your partner is thinking. Start noticing each other. Don't Guess is the couples app for people who want to feel seen, understood, and appreciated again. Most relationships don't fail because of a lack of love. They fail because the small things become invisible in everyday life. The coffee in the morning. The hug that came at exactly the right moment. The thought you never said out loud. Don't Guess makes them visible. In just a few seconds. Many things are noticed. But never said. With a green marble, you show: "I saw it." The coffee. Listening. The small gesture in between. And suddenly, something ordinary becomes a small piece of magic. That's how appreciation becomes visible again β and part of your relationship. Some things you want to say. But not right away. Not in passing. Not in the stress of everyday life. With a red marble, you capture what's on your mind. Even the things that would otherwise remain unspoken. So you can talk about it later, calmly. For clearer conversations and more understanding in your relationship. A real Date. Once a week. 30 minutes. No phones. No TV. No to-do list. Just the two of you. Don't Guess helps you set aside deliberate time for each other and keep your Date on the calendar. The moments from your week become the starting point for conversations that often get lost in everyday life. That's how you create deliberate time for your relationship. A relationship diary instead of forgotten moments Every marble is kept. The beautiful moments. The difficult ones. The special ones. Over time, this becomes a relationship diary that tells your shared story. Add photos to your memories, and bring the moments of your relationship even more to life. Something you can open anytime and think: "Remember this?" "Wow, look at everything we've been through." "And how much more aware we've become of each other." Because what you make visible, stays. Why couples love Don't Guess More everyday appreciation. More mindful communication in your relationship. Bringing up difficult topics sooner. More closeness and connection. A shared relationship diary. Deliberate time together. No more overlooking the small things. For couples who... want to notice each other more consciously again. want to show more appreciation. want to bring up difficult things sooner. don't want to lose themselves in everyday life. want to hold on to their shared story. Don't Guess Stop guessing. Start noticing. See and be seen. Make visible what moves you. 14 days of Premium β our gift to you. Full access to every Premium feature, including photos on your moments and your complete relationship diary. Terms of Use: https://www.dontguess.app/terms-of-use/ Privacy Policy: https://www.dontguess.app/datenschutz/ Don't Guess is free to use. For the first 14 days, you get full access to every Premium feature. After that, the app stays free with its core features; Premium (including photos on your moments and your complete relationship diary) is available as an auto-renewing subscription, billed through the App Store. Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period.
Screenshots
Verdict
The clearest difference is in-app purchases: Acuva at none against Don't Guess's 13. Acuva also leads on iOS requirement (13.0 vs 16.0). Don't Guess's advantage is update cadence (every 11 days vs every 3 months). On price, ads and device support there is nothing between them.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
Both are free to download. Don't Guess sells 12 in-app purchases, starting at $1.99 per month. Acuva asks for nothing beyond the download.
Acuva ships an update every 3 months, Don't Guess every 11 days. The most recent releases landed on October 4, 2026 and October 26, 2026 respectively.
| Parameter | Acuva | Don't Guess |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months | Every 11 days β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod β better | iPhone |
| Requires iOS | 13.0 β better | 16.0 |
| Further details β not scored | ||
| Size | 26 MB | 95 MB |
| Age rating | 4+ | 4+ |
| Developer | Acuva Technologies Incorporation | donΒ΄t guess GmbH |
In-app purchases
Acuva
No in-app purchases
Don't Guess
- Monthly Subscription (Early Bird)14 Days trial$1.991 Month
- Don't Guess Premium2 variants$3.991 Month
- Don't Guess Premium$4.991 Month
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- Don't Guess β Monthly Plan$5.991 Month
- Donβt Guess β Monthly Plan$5.991 Month
- Donβt Guess Annual Plan(Early Bird)14 Days trial$17.991 Year
- Don't Guess Premium$29.991 Year
- Don't Guess Premium$34.991 Year
- Don't Guess Premium$39.991 Year
- Don't Guess β Annual Plan$44.991 Year
- Donβt Guess β Annual Plan14 Days trial$44.991 Year
- Easter for couples$3.99









