Comparison

MOTIONrelax vs Calla

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

MOTIONrelax

Features
Read full description

If you own a LOGICDATA Silver Series Adjustable, we know that you value comfort, ease of use, and the joy of a perfect night’s sleep. That’s why we’ve developed our MOTIONrelax app, an app that provides total control over your Bed Frame, directly from your smart device.

About

Calla

Features
Read full description

Most period apps were built for adults trying to get pregnant. Calla wasn't. It's built for teens who just want to understand what's happening in their body - without the noise, the upsells, or the ovulation countdowns. Your data lives on your phone. No accounts required. No ads. No third parties, no data brokers, no advertisers. Optional parent share, if you want it. Privacy-first. Always. All your data stays on your phone. No accounts. No cloud. No ads. No data selling. Period. Built for how your body actually works Irregular cycles? That's normal, especially when you're starting out. Calla doesn't just assume a 28-day cycle - it learns your patterns and gives you predictions that actually make sense for your body. Track what matters to you Log your period, flow level, mood, energy, cramps, sleep, skin, focus, appetite, and activity. See how your cycle connects to how you feel day to day. Understand your cycle Get gentle, age-appropriate insights about each phase of your cycle - what's happening in your body and what to expect. Prep-day reminders Get a heads-up before your period is predicted to start so you're never caught off guard. Parent Mode Share a simple wellness signal with a parent or guardian - "all good" or "heads up" - without revealing any cycle details. Communication on your terms. Calla is not a medical app. It does not diagnose, treat, or prevent any medical condition. If you have health concerns, talk to a doctor.

Screenshots

MOTIONrelax2 screens
Calla4 screens

Verdict

The call

The clearest difference is iOS requirement: MOTIONrelax at 12.0 against Calla's 15.1. 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Scorecard1 real difference · 7 level
MOTIONrelax versus Calla: the parameters behind the verdict, then further details
ParameterMOTIONrelaxCalla
PriceFreeFree
Rating—4.8 (4 ratings) — better
Number of ratings—4 — better
Update frequencyEvery 12 months—
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size17 MB33 MB
Age rating4+12+
DeveloperLOGICDATA Electronic & Software Entwicklungs GmbHRoxana Heitz

In-app purchases

None

MOTIONrelax

No in-app purchases

None

Calla

No in-app purchases

Questions

Is MOTIONrelax free?
MOTIONrelax is free to download, with no in-app purchases.
Is Calla free?
Calla is free to download, with no in-app purchases.
Do MOTIONrelax or Calla have ads?
Neither MOTIONrelax nor Calla shows ads.

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