Comparison

sleep² sleeptracker & analysis vs ALFA Memory Tracker

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

Head to head
About

sleep² sleeptracker & analysis

This app acts as a personal guide to better sleep, combining innovative sleep training with precise sleep tracking and analysis. It offers an EU-approved medical device program for acute sleep disorders like insomnia, providing personalized recommendations and sleep training based on your data.

Highlights
  • Sleep tracking and analysis
  • Sleep training programs
  • Personalized recommendations
  • Interactive chatbot
  • Data import (Polar sensor, Apple Health)
  • Manual sleep diary entry
Read full description

Discover Sleep Anew: sleep² - Your Sleep Tracker sleep² is your personal guide to better sleep. It combines innovative sleep training with a precise sleep tracker. Sleep trackers provide valuable insights into your sleep. The sleep² Intensive Program is an EU-approved medical device, specifically designed for people with acute sleep disorders like insomnia. Our scientifically based method has already helped thousands improve their sleep quality through systematic and gradual sleep tracking and training. sleep² Pro: Based on sleep analysis, the program adapts to individual sleep data, delivering precise recommendations from your sleep tracker. Sleep Tracker: Analyze sleep using a Polar sensor or import data via Apple Health. Manually enter sleep data into the sleep diary if no tracker is used. Based on the sleep data, you get: Detailed recommendations based on sleep analysis Sleep training for better sleep An interactive chat-bot to help you sleep better Sleep analyses always available—no waiting like in sleep labs Precise sleep analysis through innovative algorithms for sleep improvement Free download & basic functions Full features of sleep² (precise sleep analysis, personalized programs) with subscription purchase Download sleep² - Our sleep tracker and precise sleep analysis help improve sleep! Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

ALFA Memory Tracker

Features
Read full description

ALFA (Accelerated Long-term Forgetting Assessment) is a research app designed to measure memory over extended periods. By studying how we forget over days and weeks, rather than minutes, ALFA will help researchers understand a range of neurological and mental health conditions. How it works - You’ll receive a few short notifications throughout the day - Each one shows you a picture and asks one simple question: have you seen it before? - Each response takes just a few seconds - You’ll get feedback on your activity in the app

Screenshots

sleep² sleeptracker & analysis4 screens
ALFA Memory Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: ALFA Memory Tracker at none against sleep² sleeptracker & analysis's 4. ALFA Memory Tracker also leads on update cadence (every 5 days vs every 2 weeks). On price, ads, device support and iOS requirement 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. sleep² sleeptracker & analysis sells 4 in-app purchases, starting at $9.99 per month. ALFA Memory Tracker asks for nothing beyond the download.

UpkeepUpdate frequency

sleep² sleeptracker & analysis ships an update every 2 weeks, ALFA Memory Tracker every 5 days. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

Scorecard2 real differences · 8 level
sleep² sleeptracker & analysis versus ALFA Memory Tracker: the parameters behind the verdict, then further details
Parametersleep² sleeptracker & analysisALFA Memory Tracker
PriceFreeFree
Rating3.6 (37 ratings) — better—
Positive reviews61.7% of reviews—
Number of ratings37 — better—
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.6
Further details — not scored
Size110 MB111 MB
Age rating4+4+
DeveloperNukkuaaH2 Cognitive Designs LTD

In-app purchases

4 purchases

sleep² sleeptracker & analysis

Subscriptions2
  • sleep² PRO$9.991 Month
  • sleep² PRO$79.991 Year
One-time2
  • sleep² intensive program$39.99
  • sleep² intensive program$99.99
None

ALFA Memory Tracker

No in-app purchases

Questions

Is sleep² sleeptracker & analysis free?
sleep² sleeptracker & analysis is free to download, with in-app purchases available.
Is ALFA Memory Tracker free?
ALFA Memory Tracker is free to download, with no in-app purchases.
Do sleep² sleeptracker & analysis or ALFA Memory Tracker have ads?
Neither sleep² sleeptracker & analysis nor ALFA Memory Tracker shows ads.
Which is updated more often, sleep² sleeptracker & analysis or ALFA Memory Tracker?
sleep² sleeptracker & analysis ships an update every 2 weeks, and ALFA Memory Tracker every 5 days. Most recently, sleep² sleeptracker & analysis was updated on October 30, 2026 and ALFA Memory Tracker on October 29, 2026.

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