# DOOS vs Blind | Carbless | Fluency

The clearest difference is update cadence: DOOS at every 4 days against Blind | Carbless | Fluency's fortnightly. Blind | Carbless | Fluency's advantage is iOS requirement (11.0 vs 15.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

DOOS ships an update every 4 days, Blind | Carbless | Fluency fortnightly. The most recent releases landed on September 27, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | DOOS | Blind | Carbless | Fluency |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (329 ratings)](https://appshunter.io/ios/app/doos/id6443408290/reviews)** | — |
| Number of ratings | **329** | — |
| Positive reviews | 55.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 days** | Fortnightly |
| Monetization | Free with in-app purchases | — |
| Size | 119 MB | 65 MB |
| Requires iOS | 15.6 | **11.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DOOS](https://appshunter.io/developer/1645272850) | [ORDER LLC](https://appshunter.io/developer/1664454406) |

## What reviewers say

### DOOS

[App page](https://appshunter.io/ios/app/doos/id6443408290)

This app delivers groceries, snacks, and everyday essentials to your doorstep quickly. It offers a wide selection of curated products at competitive prices, with convenient payment options and extended operating hours.

**Highlights:** Fast grocery delivery, Wide product selection, Competitive pricing, Secure payment options, Extended operating hours, Daily essentials

**Features:** macOS Compatibility

**In-app purchases:** none


### Blind | Carbless | Fluency

[App page](https://appshunter.io/ios/app/blind-carbless-fluency/id6473171470)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is DOOS free?

DOOS is free to download, with no in-app purchases.

### Is Blind | Carbless | Fluency free?

Blind | Carbless | Fluency is free to download, with no in-app purchases.

### Do DOOS or Blind | Carbless | Fluency have ads?

Neither DOOS nor Blind | Carbless | Fluency shows ads.

### Which is updated more often, DOOS or Blind | Carbless | Fluency?

DOOS ships an update every 4 days, and Blind | Carbless | Fluency fortnightly. Most recently, DOOS was updated on September 27, 2026 and Blind | Carbless | Fluency on September 19, 2026.

---

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