# Nano SigmaPlus vs Lexi App

The clearest difference is rating: Lexi App at 5.0 against Nano SigmaPlus's 4.0. Lexi App also leads on update cadence (fortnightly vs every 7 months). Nano SigmaPlus's advantage is ratings volume (81 vs 1) and iOS requirement (9.0 vs 15.0). 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.

Lexi App holds the better App Store score, 5.0 against 4.0. That said, the two scores are not equally well evidenced: Nano SigmaPlus has 81 ratings behind it against 1, so its average is the more settled of the two.

Nano SigmaPlus ships an update every 7 months, Lexi App fortnightly. The most recent releases landed on October 29, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | Nano SigmaPlus | Lexi App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (81 ratings)](https://appshunter.io/ios/app/nano-sigmaplus/id1483291641/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/lexi-app/id1623775291/reviews)** |
| Number of ratings | **81** | 1 |
| Positive reviews | 84.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Fortnightly** |
| Monetization | Free | Free |
| Size | 70 MB | 17 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Xiamen NewSound Technology Co., Ltd.](https://appshunter.io/developer/1174641815) | [Xurpas Enterprise Inc.](https://appshunter.io/developer/1623775293) |

## What reviewers say

### Nano SigmaPlus

[App page](https://appshunter.io/ios/app/nano-sigmaplus/id1483291641)

Connect and control your hearing aids with this application. Adjust volume, program modes, and band equalizers for a personalized listening experience.

**Highlights:** Connect to Nano Hearing Aids, Adjust Volume, Change Program Mode, Customize Band Equalizers, Personalized Hearing Experience

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and navigate
- 🚀 Quick and easy Bluetooth connection
- 💡 Customizable volume and sound modes
- ✨ Simple and clean user interface
- 😊 Helpful for hearing loss

**What reviewers complain about**

- 📉 Removed/changed features
- 🔋 Battery life not as advertised
- 🎛️ Left and right adjustments sync
- 🚫 Cannot turn off hearing aids from app
- ❓ Manual doesn't match app features

**Reported bugs**

- App crashes
- Hearing aids stopped working
- Glitchy and unclear app

**Requested features**

- Restore hearing test feature
- Bring back charge level display
- Allow independent left/right adjustment
- Enable turning off hearing aids from app
- Add AirPods compatibility


### Lexi App

[App page](https://appshunter.io/ios/app/lexi-app/id1623775291)

Manage personal leave applications, overtime, and leave balances. View team schedules, absences, and holidays for better task forecasting and leave planning. Submit and approve leave and overtime requests easily with email updates.

**Highlights:** Monitor personal leave applications, Manage overtime rendered, Track available leave balance, Team calendar view for time-off, Submit and approve leave requests, Submit and approve overtime requests, Track leave history and allocation

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Nano SigmaPlus free?

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

### Is Lexi App free?

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

### Which has better reviews, Nano SigmaPlus or Lexi App?

Lexi App is rated higher. Nano SigmaPlus averages 4.0 out of 5 from 81 ratings, while Lexi App averages 5.0 from 1 ratings.

### Do Nano SigmaPlus or Lexi App have ads?

Neither Nano SigmaPlus nor Lexi App shows ads.

### Which is updated more often, Nano SigmaPlus or Lexi App?

Nano SigmaPlus ships an update every 7 months, and Lexi App fortnightly. Most recently, Nano SigmaPlus was updated on October 29, 2026 and Lexi App on October 20, 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.*