Everyday September 2026

5 apps for the things that change too slowly to notice

Some changes are real and invisible: a kilo a month, a plant that has doubled since spring, a child two centimetres taller, a lift that went up five kilos. These five keep the record that a memory cannot — the trend under the noise, the photo from six months ago beside today’s, the number on the curve — so the change shows up as a line instead of a feeling.

The apps for the things that change too slowly to notice are Happy Scale, Succulent, Selfie A Day, Growth and Strong. I built Succulent; the other 4 are other developers’ apps.

MiaAppLog— an iOS developer who reviews other people’s apps
Published September 2026 · apps and prices last checked 13 October 2026

Four stars is my score for how well an app answers this moment. An app I built gets four and a half — that is a rule, not a comparison. The App Store’s own average is on each card beside it.

1. 

   Happy Scale

   ★★★★★★★★★★4.0 · Free · Health & Fitness · App Store 4.9 (58,037)

   Makes sense of the ups and downs of weigh-ins, so the real trend shows.

   Skip it if you want your history for free — viewing past months, notes and Apple Health sync now need premium, and some long-time users report their data disappearing.

   Official site ↗More lists with Happy Scale

   
2. 

   Succulent Editor’s pick

   ★★★★★★★★★★4.5 · Free · Lifestyle · App Store 5.0 (10)

   A photo when you notice something. Months later the change is one swipe.

   App Store ↗More lists with Succulent

   
3. 

   Selfie A Day

   ★★★★★★★★★★4.0 · Free · Photo & Video · App Store 4.7 (4,047)

   A selfie a day, played back as a movie of you.

   Skip it if you want to watch or export the finished time-lapse without paying — that and more than one album are paid, and reviewers report albums vanishing, so turn on saving to your photo library from the start.

   Official site ↗More lists with Selfie A Day

   
4. 

   Growth

   ★★★★★★★★★★4.0 · Free · Medical · App Store 4.8 (8,303)

   Plots your child's height and weight on the WHO and CDC growth curves.

   Skip it if you have more than one child or a child past their first birthday — extra children and percentiles after year one are paid add-ons, and data that is not backed up has been lost to a phone switch.

   Official site ↗More lists with Growth

   
5. 

   Strong

   ★★★★★★★★★★4.0 · Free · Health & Fitness · App Store 4.9 (108,527)

   Logs every set and weight, so the gym progress is on record, not in memory.

   Skip it if you log from an Apple Watch — workouts not syncing between watch and phone is the most repeated complaint, along with recent redesigns moving notes and screens regulars relied on.

   Official site ↗More lists with Strong

   

Succulent is one of mine — everything else on this list is someone else’s app. How that works.