Comparison

Fellow vs Diemline

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

Head to head
About

Fellow

Enhance your coffee brewing experience by connecting your smart coffee maker. Create custom brew profiles, schedule brews, and fine-tune every variable for perfect results. Access educational content to master your espresso craft.

Highlights
  • Create custom brew profiles
  • Schedule brews in advance
  • Fine-tune brewing variables
  • Access guided educational content
  • Improve espresso technique
Read full description

Connect your Fellow Aiden or Espresso Series 1 to unlock the full experience and stay up to date with the latest features. Aiden - Brew exceptional coffee with precision and ease. Create, edit, and share custom brew profiles Schedule brews in advance Fine-tune every variable for perfect results Combining precision, control, and speed, Aiden delivers pour-over quality coffee at the press of a button. Espresso Series 1 - Master your espresso craft. Access guided educational content Learn how to dial in your machine Improve your technique and consistency Profile syncing and Drops for Espresso Series 1 coming soon.

About

Diemline

Features
Read full description

Your day is a line, not a timesheet. Tap what you are doing. Diemline ends the last stretch and starts the next. Breakfast becomes commute. Commute becomes work. The 24-hour strip fills in as you go. THAT IS THE WHOLE HABIT One tap to switch. Slide to stop. Long-press a block to pick a detail — meeting, walk, school run — or add your own. Forgot two hours? Tap the gap on the strip and fill it in, or check your calendar for a suggestion. EIGHT LIFE BLOCKS Sleep, Meals, Commute, Work, Home, Health, Leisure, Other. Keep the home screen simple. Put the detail underneath. COMPARE WEEKS AND MONTHS Stack seven day strips. See Work, Commute, and Sleep this week versus last, this month versus last. Optional end-of-day rating so you can notice how long days felt. REVIEW, SEARCH, AND LEARN Finish the day with a quick review. Add notes and tags, search your history, set daily activity goals, and see simple on-device patterns and mood associations. LOCK SCREEN AND HOME SCREEN A Live Activity shows the current name and elapsed time with a one-tap Stop control. Widgets show what you are doing, or today as a line with recent activities one tap away. Control Center can stop or switch activities too. APPLE WATCH See what is running, switch activities, stop tracking, and keep Diemline on your watch face with the complication. SIRI AND SHORTCUTS "Switch to Work in Diemline." "Stop tracking in Diemline." Ask for today's summary or log a past stretch. Use the Action Button, Back Tap, or a Focus automation. HOME AND WORK, IF YOU WANT Drop a pin for Home and Work. Diemline can suggest a switch when you arrive or leave. It never builds a location timeline, and it never switches until you confirm. PRIVATE BY DEFAULT Your log stays on your devices. No account. Optional automatic iCloud Drive backup keeps a mergeable copy for your devices. Export CSV or JSON any time. Natural-language entry runs on-device on supported iPhones and always shows a preview before saving. Diemline is for people who want to see where the day actually went — not bill hours, not plan a perfect calendar.

Screenshots

Fellow4 screens
Diemline4 screens

Verdict

The call

The clearest difference is iOS requirement: Fellow at 15.1 against Diemline's 17.0. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Fellow ships an update every 4 weeks, Diemline fortnightly. The most recent releases landed on October 22, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
Fellow versus Diemline: the parameters behind the verdict, then further details
ParameterFellowDiemline
PriceFreeFree
Rating2.0 (66 ratings) — better—
Positive reviews10.0% of reviews—
Number of ratings66 — better—
Update frequencyEvery 4 weeksFortnightly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad, Apple Watch — better
Requires iOS15.1 — better17.0
Further details — not scored
Size123 MB6 MB
Age rating4+4+
DeveloperFellowTextWaves Inc

Bugs and requests

Fellow

Reported bugs

3 issues
  • App unable to connect to WiFi
  • Bluetooth pairing problems
  • Inconsistent device visibility

Requested features

3 requests
  • Ability to brew by grams of coffee
  • Scheduling and remote start features
  • Custom recipe input and management

Diemline

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Fellow

No in-app purchases

None

Diemline

No in-app purchases

Questions

Is Fellow free?
Fellow is free to download, with no in-app purchases.
Is Diemline free?
Diemline is free to download, with no in-app purchases.
Do Fellow or Diemline have ads?
Neither Fellow nor Diemline shows ads.
Which is updated more often, Fellow or Diemline?
Fellow ships an update every 4 weeks, and Diemline fortnightly. Most recently, Fellow was updated on October 22, 2026 and Diemline on October 16, 2026.

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