# iSum vs Perksly

The clearest difference is rating: Perksly at 5.0 against iSum's 4.1. Perksly also leads on in-app purchases (none vs 1) and review sentiment (100% vs 83%). iSum's advantage is update cadence (fortnightly vs monthly) and ratings volume (24 vs 4). On price, ads and device support there is nothing between them.

Both are free to download. iSum sells 1 in-app purchase, starting at $2.99 per year. Perksly asks for nothing beyond the download.

Perksly holds the better App Store score, 5.0 against 4.1. That said, the two scores are not equally well evidenced: iSum has 24 ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 83% of iSum's written reviews are positive against 100% of Perksly's.

iSum ships an update fortnightly, Perksly monthly. The most recent releases landed on October 23, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iSum | Perksly |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (24 ratings)](https://appshunter.io/ios/app/isum/id435350676/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/perksly/id6765830177/reviews)** |
| Number of ratings | **24** | 4 |
| Positive reviews | 82.7% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Fortnightly** | Monthly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 1 MB | 20 MB |
| Requires iOS | **15.0** | 26.1 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [ZEN PLUS LTD](https://appshunter.io/developer/317808580) | [Wei-Ting Liao](https://appshunter.io/developer/1896092384) |

## What reviewers say

### iSum

[App page](https://appshunter.io/ios/app/isum/id435350676)

Easily track expenses, time, and various other metrics with a beautifully redesigned, user-friendly interface. Gain insights into your data with totals, averages, and trends, and export your information conveniently.

**Highlights:** Simplified and intuitive interface, Versatile tracking of expenses, time, and metrics, Customizable group organization, In-depth data insights and trend overviews, CSV data export functionality, Support for tracking negative numbers

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| iSum Annual Subscription | $2.99 | per year |

**What reviewers like**

- 👍 Simple and easy to use
- 🚀 Straightforward and efficient
- 💡 Useful for tracking expenses and budgeting
- 🔒 Secure and private data storage
- ⭐ Great customer service and responsiveness

**What reviewers complain about**

- 🐛 Occasional crashes or data loss issues
- 🔒 Lack of password protection or security features
- 💰 Subscription model or paid upgrade concerns
- 📂 Limited number of categories or lists
- 🔄 Difficulty restoring previous purchases

**Reported bugs**

- Notes or descriptions disappearing after edits
- Incompatibility issues with newer iOS versions
- Incorrect date/time recording for entries

**Requested features**

- Add more category options
- Implement iCloud or cloud sync support
- Include a daily/weekly/monthly expense summary
- Allow customization of currency and date formats
- Provide a password protection or lock screen feature


### Perksly

[App page](https://appshunter.io/ios/app/perksly/id6765830177)

This app helps premium credit card holders maximize their benefits by tracking and reminding them about expiring credits and perks. It offers insights into card value and ensures you don't miss out on any of the benefits you're paying for.

**Highlights:** Tracks monthly, quarterly, semi-annual, and annual credits, Shows available, used, and at-risk credits, Sends smart reminders before credits expire, Logs always-on perks like lounge access and elite status, Catalog of 200+ U.S. credit cards, Insights by card, category, or issuer

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iSum free?

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

### Is Perksly free?

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

### Which has better reviews, iSum or Perksly?

Perksly is rated higher. iSum averages 4.1 out of 5 from 24 ratings, while Perksly averages 5.0 from 4 ratings.

### Do iSum or Perksly have ads?

Neither iSum nor Perksly shows ads.

### Which is updated more often, iSum or Perksly?

iSum ships an update fortnightly, and Perksly monthly. Most recently, iSum was updated on October 23, 2026 and Perksly on October 24, 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.*