Comparison

The Quantified Self vs Stampd

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

Head to head
About

The Quantified Self

This app helps you manage recurring tasks and habits, prioritizing them by urgency, due date, or importance. It offers automation based on location or NFC tags, performance tracking, and workload adjustment. Organize habits into projects and review your past activities.

Highlights
  • Recurring task management
  • Habit tracking (good and bad)
  • Automation via location/NFC
  • Habit organization into projects
  • Performance tracking over time
  • Workload adjustment based on bandwidth
Features
Read full description

Manage your recurring tasks and your habits (good and bad), and see your intentions laid out by urgency, due date, or importance. You can also: - Automate your habits based on location, health, or NFC tags - Organize habits into projects - Track your performance over time - Right-size your habit workload by your available bandwidth - Peruse your timeline of past habits Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

Stampd

Features
Read full description

Keep track of when it's time to tend to a task with Stampd. When's the last time you... vacuumed the house? Went on a date? Watered your plants? Called your parents? Every time you complete a task you want to track, just Stamp-In to record your time stamp. Juggle all your tasks easily as you see all your Stampd's progress time count downs. Make your task management easy to log in to, and also remind you of other outlying tasks. Share your Stampd cards with other users. By sharing cards, you can with other multiple users Stamp-In to the same Stampd. Easily see and share notes about your Stamp-Ins. For instance, see who washed the dishes this time, or see if the dog already got fed this morning. Use notifications to be alerted when it's time to Stamp-In to a task. Use widgets to maintain a close eye on the status of your Stamps with ease.

Screenshots

The Quantified Self3 screens
Stampd4 screens

Verdict

The call

The clearest difference is update cadence: Stampd at monthly against The Quantified Self's every 7 months. The Quantified Self's advantage is iOS requirement (13.0 vs 18.0). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. The Quantified Self sells 4 in-app purchases, starting at $1.99 per month and Stampd sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

The Quantified Self ships an update every 7 months, Stampd monthly. The most recent releases landed on September 17, 2026 and September 20, 2026 respectively.

Scorecard2 real differences ยท 6 level
The Quantified Self versus Stampd: the parameters behind the verdict, then further details
ParameterThe Quantified SelfStampd
PriceFreeFree
Positive reviews0.0% of reviewsโ€”
Update frequencyEvery 7 monthsMonthly โ€” better
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumโ€”
DevicesiPhone, iPad, iPod โ€” betteriPhone, iPad
Requires iOS13.0 โ€” better18.0
Further details โ€” not scored
Size39 MB2 MB
Age rating4+4+
DeveloperJared Clifton-LeeJoseph Kim

In-app purchases

4 purchases

The Quantified Self

Subscriptions4
  • Pro Monthly$1.991 Month
  • Pro Quarterly$5.493 Months
  • Pro Biannual$10.496 Months
Show 1 more
  • Pro Yearly$20.491 Year
1 purchases

Stampd

One-time1
  • Stampd Pro$4.99

Questions

Is The Quantified Self free?
The Quantified Self is free to download, with in-app purchases available.
Is Stampd free?
Stampd is free to download, with in-app purchases available.
Do The Quantified Self or Stampd have ads?
Neither The Quantified Self nor Stampd shows ads.
Which is updated more often, The Quantified Self or Stampd?
The Quantified Self ships an update every 7 months, and Stampd monthly. Most recently, The Quantified Self was updated on September 17, 2026 and Stampd on September 20, 2026.

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