Comparison

m vs Sessei

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

Head to head
About

m

This tool allows researchers and practitioners to create and deliver custom questionnaires to participants on a mobile device. It facilitates the collection of data on emotions, complaints, and context, with responses trackable via an online dashboard.

Highlights
  • Customizable questionnaires
  • Scheduled delivery to respondents
  • Mobile-optimized interface
  • Momentary emotion tracking
  • Contextual questioning
  • Online response dashboard
Features
Read full description

This app is an emotional monitoring tool, connecting surveyors and respondents in a seamless manner. Researchers or practitioners devise questionnaires for participants or clients respectively, which are then offered to the responder according to an agreed upon schedule. These questionnaires are optimized for a mobile interface and can include questions on momentary emotions, possible complaints, contextual questions and more. The surveyor designs these questionnaires in an online dashboard, and can follow up on responses over time.

About

Sessei

Features
Read full description

Sessei is a calm, local-first tracker for the three habits that make the rest of your wellness routine work: drinking enough water, sticking to your fasting window, and remembering your daily supplements. No account. No cloud. No tracking. Your data stays on your device. — WATER — Log drinks in two taps from the home screen, the Add sheet, or a home-screen widget. Eight drink types are built in with research-backed hydration coefficients, so a coffee or a glass of wine doesn't quietly inflate your daily total. Quick-add presets remember your usual sizes and drink types. — FASTING — A clean, focused timer for intermittent fasting. Pick a window from 12:12 to 23:1 and tap to start. The ring evolves through ten phases — from glycogen burn through autophagy to extended fasting — with a personalised autophagy estimate tied to your profile. A flame marks where autophagy is generally observed. Tap to learn more about the science. — SUPPLEMENTS — Add supplements from a curated catalog of ~50 vitamins, minerals and common stack items, or scan a label with the camera. Daily and weekly cadences. Tap to log, swipe to deactivate. The app gently nudges you when something is due based on timing hints (with-meal, fasted, evening, etc.). — INSIGHTS — Day, week and month views per category. Swipe horizontally to scrub through history. See your weekly hydration cadence, fasting consistency, and supplement adherence at a glance. — HOME-SCREEN WIDGET — Three sizes. The small widget is water at-a-glance plus a +50 and +250 mL quick-log button. The medium widget shows water and your current fast side by side. The large widget adds supplements still to take today. — PRIVATE BY DESIGN — Everything you log lives in a local database on your iPhone. There is no Sessei account, no analytics, no third-party SDK collecting your data. The optional Apple Health integration is two-way and entirely under your control — turn it on or off in Profile at any time. — PRICING — Free 7-day trial unlocks every feature. After the trial, water and fasting stay free forever. The Supplements module requires a one-time Premium purchase — no subscription, no recurring fee, no expiry. Restore Purchases is available in the paywall if you change devices. — DESIGN NOTES — Sage palette, copper accents, generous whitespace. Built for iOS 17 — interactive widgets, Live Activities-ready, Dark Mode throughout. The app respects Reduce Motion and uses Dynamic Type everywhere. — WHAT SESSEI WILL NOT DO — No streaks-as-shame. No alarm-bell notifications. No "you missed yesterday" guilt copy. The tone is supportive, the data is yours, and the goal is to make showing up easier — not noisier. Support: feedback@sessei.app Privacy Policy: https://sessei.app/privacy

Screenshots

m4 screens
Sessei4 screens

Verdict

The call

The clearest difference is in-app purchases: m at none against Sessei's 1. m also leads on device support (3 vs 1) and iOS requirement (15.5 vs 17.0). Sessei's advantage is update cadence (daily vs every 9 days). On price and ads 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. Sessei sells 1 one-off in-app purchase. m asks for nothing beyond the download.

UpkeepUpdate frequency

m ships an update every 9 days, Sessei daily. The most recent releases landed on November 4, 2026 and October 28, 2026 respectively.

Scorecard4 real differences · 5 level
m versus Sessei: the parameters behind the verdict, then further details
ParametermSessei
PriceFreeFree
Rating3.0 (4 ratings) — better—
Number of ratings4 — better—
Update frequencyEvery 9 daysDaily — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree—
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.5 — better17.0
Further details — not scored
Size60 MB4 MB
Age rating12+4+
Developerm-Path SoftwareBenjamin Christmann

In-app purchases

None

m

No in-app purchases

1 purchases

Sessei

One-time1
  • Premium Lifetime$7.99

Questions

Is m free?
m is free to download, with no in-app purchases.
Is Sessei free?
Sessei is free to download, with in-app purchases available.
Do m or Sessei have ads?
Neither m nor Sessei shows ads.
Which is updated more often, m or Sessei?
m ships an update every 9 days, and Sessei daily. Most recently, m was updated on November 4, 2026 and Sessei on October 28, 2026.

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