# Delta Timer △ vs Calmplot

The clearest difference is in-app purchases: Delta Timer △ at none against Calmplot's 3. Calmplot's advantage is device support (3 vs 1) and iOS requirement (15.6 vs 18.1). On price, rating, ratings volume and update cadence there is nothing between them.

Both are free to download. Calmplot sells 3 in-app purchases, starting at $9.99 per month. Delta Timer △ asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for Delta Timer △ against 5.0 for Calmplot. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Delta Timer △ ships an update every 10 days, Calmplot weekly. The most recent releases landed on October 6, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Delta Timer △ | Calmplot |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/delta-timer/id6748762829/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/calmplot-private-ai-journal/id6758394565/reviews) |
| Number of ratings | 1 | **2** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 10 days | **Weekly** |
| Monetization | **Free** | Freemium |
| Size | 12 MB | 61 MB |
| Requires iOS | 18.1 | **15.6** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Thomas Delgado Dias](https://appshunter.io/developer/944281589) | [Chad Epstein](https://appshunter.io/developer/1872686665) |

## What reviewers say

### Delta Timer △

[App page](https://appshunter.io/ios/app/delta-timer/id6748762829)

This interval timer app guides users through various training routines like HIIT and Tabata. It offers customizable workouts with adjustable exercise and rest periods, featuring a minimalist design with light and dark modes for focused training.

**Highlights:** Customizable workout creation, Adjustable exercise and rest durations, Minimalist, distraction-free interface, Light and dark modes, Supports HIIT, Tabata, EMOM, and circuits

**Features:** macOS Compatibility

**In-app purchases:** none


### Calmplot

[App page](https://appshunter.io/ios/app/calmplot-private-ai-journal/id6758394565)

Quickly capture thoughts via voice or text and receive AI-powered reflections. Visualize your life's balance as a growing garden and identify patterns over time. Offers gentle prompts for small actions to foster progress.

**Highlights:** 30-second voice and text journaling, AI reflections, Mood tracking, Life balance garden view, Weekly reviews and pattern summaries, Memory recall, Full data export

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calmplot Premium Monthly | $9.99 | per month |
| Calmplot Premium Yearly | $49.99 | per year |
| Calmplot Premium Lifetime | $99.99 | one-time |


## Frequently asked questions

### Is Delta Timer △ free?

Delta Timer △ is free to download, with no in-app purchases.

### Is Calmplot free?

Calmplot is free to download, with in-app purchases available.

### Which has better reviews, Delta Timer △ or Calmplot?

Delta Timer △ and Calmplot are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Delta Timer △ or Calmplot have ads?

Neither Delta Timer △ nor Calmplot shows ads.

### Which is updated more often, Delta Timer △ or Calmplot?

Delta Timer △ ships an update every 10 days, and Calmplot weekly. Most recently, Delta Timer △ was updated on October 6, 2026 and Calmplot on October 16, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*