# Nirmane Ami vs Duty Ai

The clearest difference is rating: Duty Ai at 4.6 against Nirmane Ami's 4.0. Duty Ai also leads on update cadence (every 4 weeks vs every 4 months) and review sentiment (88% vs 67%). Nirmane Ami's advantage is iOS requirement (11.0 vs 15.1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Duty Ai holds the better App Store score, 4.6 against 4.0. That said, the two scores are not equally well evidenced: Duty Ai has 31 ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 67% of Nirmane Ami's written reviews are positive against 88% of Duty Ai's.

Nirmane Ami ships an update every 4 months, Duty Ai every 4 weeks. The most recent releases landed on June 22, 2026 and September 2, 2026 respectively.

## The numbers

| Metric | Nirmane Ami | Duty Ai |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (6 ratings)](https://appshunter.io/ios/app/nirmane-ami/id1422488362/reviews) | **[4.6 (31 ratings)](https://appshunter.io/ios/app/duty-ai/id6476618432/reviews)** |
| Number of ratings | 6 | **31** |
| Positive reviews | 66.7% of reviews | **87.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 4 weeks** |
| Monetization | Free | Free |
| Size | 104 MB | 72 MB |
| Requires iOS | **11.0** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Nirmaney Aami](https://appshunter.io/developer/1422488361) | [Easin Arafat](https://appshunter.io/developer/1690629309) |

## What reviewers say

### Nirmane Ami

[App page](https://appshunter.io/ios/app/nirmane-ami/id1422488362)

This app provides comprehensive guidelines for sustainable building construction and maintenance. It aims to reduce construction costs by offering detailed information and audio-visual demonstrations on materials, safety, and management. It empowers home builders with knowledge to eliminate misconceptions about construction.

**Highlights:** Sustainable building construction guidelines, Construction material information, Safety issues in construction, Audio-visual demonstrations, Construction pre-planning assistance, Feedback mechanism

**Features:** macOS Compatibility

**In-app purchases:** none


### Duty Ai

[App page](https://appshunter.io/ios/app/duty-ai/id6476618432)

This AI-powered app provides stock market analysis, helping users make informed investment decisions. It offers tools for analyzing stocks, managing portfolios, practicing trading, and learning about financial concepts in a clear, user-friendly way.

**Highlights:** Instant stock analysis, Learn fundamental & technical analysis, Portfolio tracking, Paper money trading, Custom stock screener, AI market alerts, Smart charting

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nirmane Ami free?

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

### Is Duty Ai free?

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

### Which has better reviews, Nirmane Ami or Duty Ai?

Duty Ai is rated higher. Nirmane Ami averages 4.0 out of 5 from 6 ratings, while Duty Ai averages 4.6 from 31 ratings.

### Do Nirmane Ami or Duty Ai have ads?

Neither Nirmane Ami nor Duty Ai shows ads.

### Which is updated more often, Nirmane Ami or Duty Ai?

Nirmane Ami ships an update every 4 months, and Duty Ai every 4 weeks. Most recently, Nirmane Ami was updated on June 22, 2026 and Duty Ai on September 2, 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.*