# Delta: Mind the Gap — Rate it before. Rate it after.

> Rate it before. Rate it after. (iPhone/iPad app by jiebin huang.)

- Source: https://appshunter.io/ios/app/delta-mind-the-gap/id6791729407 (this page in markdown: same URL + `.md`)
- Developer: [jiebin huang](https://appshunter.io/developer/1895731374)
- Category: Lifestyle, Health & Fitness
- Price: $9.99
- Age rating: 4+
- Requires: iOS 17.0 · 16 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2026-08-01
- Data updated: 2026-10-08

## What is Delta?

Ever notice how the stress you imagine beforehand is scarier than the thing itself? You start with dread, and afterwards it wasn't that bad.

Delta helps you see one thing clearly: the gap between what you expected and what actually happened. It's simple. Before you start, rate the stress you expect, 1 to 5. Afterwards, follow up and rate how it actually felt. The difference between the two scores is Δ (Delta): the shadow of trees your brain invented to talk you out of it.

Every entry is a card. As the cards add up, an automatic report does the math for you: most things aren't as bad as you imagined. When your guesses drift closer to reality and Δ approaches 0, you graduate.

That's why Delta is a one-time purchase with no subscription. The whole point is that one day you won't need it anymore.

Some quiet details:
· A home-screen widget, Sun, Moon & Forest: by day, a bigger gap casts a longer shadow; by night, a bigger gap fills the forest.
· Four themes: Oak, Sepia, Indigo, Blush.
· Export your report as an image, in three time ranges.
· Face ID app lock. Removing a card moves it to Drafts first, so you can always take it back. Full backup and export.

The developer is a medical PhD student who wanted to study her own anxiety the way she studies everything else, and walk out of its shadow.

An honest note: Delta is a tool for self-observation. It doesn't diagnose or treat anything, and it isn't a substitute for professional help. If anxiety is seriously affecting your life, please reach out to a professional first.

Privacy: Delta runs entirely on your device. No network requests, no data collection, no accounts. Every entry is yours alone.

## Is Delta safe?

Not enough ratings yet to assess Delta.

## Is Delta legit?

Delta: Mind the Gap has limited verification signals. The AppsHunter Legitimacy Score for Delta is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 3 releases)

### 2.9.2 — 2026-08-10

In this version:
· Background thumbnails in Settings now match your theme.

### 2.9.1 — 2026-08-03

Delta now speaks English, the whole app from the first card to the graduation ceremony.

Also in this version:
· The rating slider got tick marks. Tap a mark to jump straight to that level.
· Cards no longer move while you are still editing them. They settle first, then find their place.
· Long event names lay out cleanly instead of crowding the card.

### 2.9.0 — 2026-07-28

No release notes.

## More apps by jiebin huang

- [Moday — Daily Planner](https://appshunter.io/ios/app/moday-daily-planner/id6764320865)

All apps by jiebin huang: https://appshunter.io/developer/1895731374

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-10-08.*