HydraCal vs DoeDiary
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
HydraCal
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HydraCal makes it simple to stay on top of your daily hydration and calorie needs. Designed with people undergoing radiotherapy in mind, and working with the products provided by your healthcare professional, HydraCal helps you record your fluid intake and nutrition in just a few taps. With clear progress tracking against your daily goals and an easy-to-read history, HydraCal supports your wellbeing by keeping you motivated and informed. Its clean, modern interface ensures that logging your Fortisips® and Calogen® intake as well as feeding tube flushes and any other calorie or liquid intake is quick, effortless, and stress-free.
DoeDiary
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A minimalistic activity tracker, configurable to log any type of activity such as sport, study or any routine you want to track.
Screenshots
Verdict
The clearest difference is update cadence: DoeDiary at daily against HydraCal's every 4 weeks. 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.
HydraCal ships an update every 4 weeks, DoeDiary daily. The most recent releases landed on October 14, 2026 and October 25, 2026 respectively.
| Parameter | HydraCal | DoeDiary |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 weeks | Daily — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.1 | 14.0 — better |
| Further details — not scored | ||
| Size | 39 MB | 7 MB |
| Age rating | 17+ | 4+ |
| Developer | Daniel Mitchell | Lewis Clark |
In-app purchases
HydraCal
No in-app purchases
DoeDiary
No in-app purchases
