# DFLOW vs Delta Calendar

The clearest difference is ads: Delta Calendar at none against DFLOW's shown. Delta Calendar also leads on update cadence (daily vs every 4 months). DFLOW's advantage is iOS requirement (15.6 vs 17.6). On price, in-app purchases and device support there is nothing between them.

Both are free to download. DFLOW sells 1 one-off in-app purchase and Delta Calendar sells 5 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

DFLOW ships an update every 4 months, Delta Calendar daily. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | DFLOW | Delta Calendar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.3 (3 ratings)](https://appshunter.io/ios/app/dflow-habit-tracker/id6443881739/reviews)** | — |
| Number of ratings | **3** | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 4 months | **Daily** |
| Monetization | Free with in-app purchases | — |
| Size | 6 MB | 22 MB |
| Requires iOS | **15.6** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [Anton Burov](https://appshunter.io/developer/1655298862) | [Lojas Software Corp](https://appshunter.io/developer/1799458054) |

## What reviewers say

### DFLOW

[App page](https://appshunter.io/ios/app/dflow-habit-tracker/id6443881739)

Build positive daily routines and achieve your personal goals with this intuitive habit tracker. It offers personalized customization, daily reminders, and progress visualization to help you create lasting lifestyle changes and foster overall wellness.

**Highlights:** Intuitive habit tracking, Goal achievement tools, Daily routine building, Personalized customization, Daily reminders, Progress visualization

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| DFLOW+ | $0.99 | one-time |


### Delta Calendar

[App page](https://appshunter.io/ios/app/delta-calendar/id6744043360)

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Insights | $1.99 | per month |
| Premium Cloud Sync & Insights | $7.99 | per month |
| AI Reports | $19.99 | per month |
| Pilot | $99.99 | per month |
| Cohort | $189.99 | per month |


## Frequently asked questions

### Is DFLOW free?

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

### Is Delta Calendar free?

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

### Do DFLOW or Delta Calendar have ads?

DFLOW shows ads; Delta Calendar does not.

### Which is updated more often, DFLOW or Delta Calendar?

DFLOW ships an update every 4 months, and Delta Calendar daily. Most recently, DFLOW was updated on November 3, 2026 and Delta Calendar on October 30, 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.*