# SRP M vs Ida OS

The clearest difference is update cadence: Ida OS at every 2 weeks against SRP M's every 2 months. SRP M's advantage is iOS requirement (14.0 vs 16.4). 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.

SRP M ships an update every 2 months, Ida OS every 2 weeks. The most recent releases landed on November 3, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | SRP M | Ida OS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (124 ratings)](https://appshunter.io/ios/app/srp-m-power/id1280528250/reviews)** | — |
| Number of ratings | **124** | — |
| Positive reviews | 16.1% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 2 weeks** |
| Monetization | Free | — |
| Size | 53 MB | 96 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Salt River Project Agricultural Improvement & Power District](https://appshunter.io/developer/1178797958) | [ASE Lights](https://appshunter.io/developer/1713115855) |

## What reviewers say

### SRP M

[App page](https://appshunter.io/ios/app/srp-m-power/id1280528250)

Manage your energy account and make purchases conveniently from your mobile device. Track your energy usage, view purchase history, and receive important account updates. Reload your account securely anytime, anywhere.

**Highlights:** Secure account reloading, Digital cash payment card, View purchase history, Track energy usage, Real-time credit remaining updates, Account update notifications

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 📱 Convenient mobile payment from home
- 👁️ Real-time visibility into electricity usage
- ⚡ Quick power restoration after payment
- 🔔 Low balance alerts and notifications (when working)
- 💳 Multiple payment method support

**What reviewers complain about**

- 🔔 Notifications frequently don't work or are unreliable
- 🐛 App crashes and force closes regularly
- ⏱️ Payment processing takes 3-7 days
- 📊 Balance display inaccurate compared to physical meter
- 🔐 Forced phone system updates required

**Reported bugs**

- Notification system non-functional for extended periods
- App crashes on login screen
- App force closes when accessing payment/add funds page
- Random logout loops preventing access
- Balance not updating or showing stale data

**Requested features**

- Real-time balance refresh button
- Accurate real-time balance updates synced with meter
- Credit card payment option (not just checking account)
- Auto-pay feature when balance falls below threshold
- Apple Wallet integration or widget


### Ida OS

[App page](https://appshunter.io/ios/app/ida-os/id6783426224)

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

**In-app purchases:** none


## Frequently asked questions

### Is SRP M free?

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

### Is Ida OS free?

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

### Do SRP M or Ida OS have ads?

Neither SRP M nor Ida OS shows ads.

### Which is updated more often, SRP M or Ida OS?

SRP M ships an update every 2 months, and Ida OS every 2 weeks. Most recently, SRP M was updated on November 3, 2026 and Ida OS on October 25, 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.*