# iSum — user reviews > 173 indexed App Store user reviews of iSum by ZEN PLUS LTD, rated 4.10/5 from 24 ratings. - Source: https://appshunter.io/ios/app/isum/id435350676/reviews - App overview in markdown: https://appshunter.io/ios/app/isum/id435350676.md - Rating breakdown: 5★ 16 · 4★ 3 · 3★ 1 · 2★ 0 · 1★ 4 ## What do users think of iSum? Overall sentiment: positive **Pros** - 👍 Simple and easy to use - 🚀 Straightforward and efficient - 💡 Useful for tracking expenses and budgeting - 🔒 Secure and private data storage - ⭐ Great customer service and responsiveness **Cons** - 🐛 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 **Commonly reported bugs** - Notes or descriptions disappearing after edits - Incompatibility issues with newer iOS versions - Incorrect date/time recording for entries **Most 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 ## Newest reviews (13 of 173) ### 4/5 — Simple and easy *2024-07-22, version 6.2.0* I have used this app for a while now. It’s simple and easy to use. ### 4/5 — Needs iCloud support *2021-01-29* I use this app all the time. Recently bought a new iPhone and realized I needed to manually recreate all my lists. This was not fun, so I wish this app eventually can store inside of iCloud ### 4/5 — Crashing with Update *2021-01-03* I updated my iPhone last night and now the program is crashing. Matej Ukmar, please update! :) ### 3/5 — Ii fails to restore my purchase *2020-02-04, version 5.2* I bought it in the past from (kerubin.com) please advice or provide an email to send my receipt to fix it. I really like the app ### 5/5 — Excellent budgeting app *2019-03-13* This is the perfect tool to keep track of your spends. The interface is attractive, functional and clean making data entry frictionless. Couldn’t be better. Well done to this developer who has good sense and design skills. A joy to use, no clutter. ### 5/5 — Really good! *2019-03-03* No other app like this as far as i can see, so nice to keep track of money, and seeing your total effortlessly. ### 5/5 — Nice simple app for keeping track of running total, accounts, etc *2018-05-26, version 5.2* I’ve used it for years. Works fine. Simple & effective, not cumbersome or ‘top-heavy’. ### 4/5 — ISum *2018-01-12* I love the app because of its simplicity. Just wish there is an iPad version that can sync to the iPhone version. ### 4/5 — Great *2017-12-10* Simple useful tiny app! Other spreadsheet apps are too complicated yet over powerful for daily use! This app meets most but basic demand! If it could add one more column for each sheet would be perfect for daily life! ### 5/5 — Aplikasi terbaik *2017-08-26, version 5.2* Aplikasi wajib di iphone ku.mencatat pengeluaran harian disaat sibuk agar tidak ada yang terlewatkan.aku rela membayar demi aplikasi ini.terima kasih "Isum" yang membantu meringankan tugas harianku ### 5/5 — Finally an update! *2017-05-10, version 5.0* I have used this app as a checkbook for my bills and such for years! So glad it's updated! ### 5/5 — Simple, Well Done *2016-10-15* I use this app to track my credit card purchases. The interface is straightforward and quick, and I've never had the app malfunction. It's very handy and has definately helped me manage my money. ### 5/5 — Schlicht *2016-01-08* Macht, was es soll, ohne Werbebanner. Toll! ## Most critical reviews (10 lowest-rated) ### 1/5 — I don’t recommend it *2023-07-30* I bought it some time ago ( one payment for life time to be used as many entries as I want ) , now you switch to subscription and you deprive me from adding new entries which I paid for, you can switch to subscription for new users and they will have the choice to buy it or not ### 1/5 — Previous Purchased Options Removed?? *2023-07-04* Have used for several years but disappointed and annoyed that this update with its switch to a subscription actually removed the multiple accounts option I previously purchased !! I have other apps that changed to a subscription format but they retained functions users previously purchased — not a happy camper and won’t support this app any longer! **Developer response:** Please update to the latest version, app now has the option for restoring previous purchases. ### 1/5 — Where the updates? *2023-04-26, version 5.2* I used to LOVE this app, but it just crashes now. Please update! Thanks ### 1/5 — Not working! *2020-12-03* App has crashed and can’t restore my data!! ### 1/5 — Used to be my favorite app but won’t open with iOS 14 *2020-11-30* Help! I rely on this app to track finances and now it won’t open. I hope this is fixed ASAP. ### 1/5 — All my data gone *2020-07-06* It was really good app so far, it’s so basic and useful. But when my phone had problem and have to erase the settings and restore back up, it was nothing there. All my important data’s gone. I contacted to support email even the email could not delivered. It has to be i cloud back up, otherwise what is the point you are trying to keep some of your data there ### 1/5 — Buggy and poor support *2017-11-03* The app restore previous purchases functionality not working. If you uninstall the app you have to buy it again to get full version. Rate on the app store feature not working. If you contact the app support no one will respond back not even after months. There is no support. They just thrown the app in the app store. ### 1/5 — Don't like the update! *2013-04-11* I like the App before the update. Love the old App keeps everything concealed until you select an item! Wonder, why we are always being forced to update when the one we are using worked just fine? Is there a way to undo the update version? ### 1/5 — Waste *2013-01-11* Didn't like it as it doesn't have even help option I Just waste my Cofee money and my time it is not worthy.and you are forcing me to give star it doesn't deserve request but just to send my message I'll put one star. ### 1/5 — Limited therefore useless *2013-01-04* The free version is limited to 2 lists making it utterly useless. ## Most praised reviews (10 highest-rated) ### 5/5 — Previous Purchases Restored ! *2023-11-24* I give credit to the developer for listening to customer concerns regarding the removal of the ‘restore previous purchases’ option when the app went to a subscription format. I had used iSum for many years and it was a great app for tracking multiple accounts in an uncomplicated but functional manner. I stopped using it when the restore previous purchase was removed and I did not want to purchase a subscription format. I was impressed that the developer emailed me that the latest update restored the previous purchase option. I look forward to using iSum again! ### 5/5 — Great service *2023-11-20* The dev changed something and I didn’t like it. I wrote him and he fixed it! Cool dude! ### 5/5 — Simple and useful *2023-09-06* I’ve been using this for years now, and it’s always been easy to use. I use it for keeping track of household expenses by the month, I like the fact it’s got few bells and whistles, just does a simple task well. I’ve now upgraded to premium, this is one of the most useful apps on my iPhone ! Thanks guys ! ### 5/5 — Great service *2023-07-16* The dev changed something and I didn’t like it. I wrote him and he fixed it! Cool dude! ### 5/5 — Still great *2023-07-07* This is a lovely, simple app which does one thing well: it lets you keep track of, for instance, sums of money you've spent and when, categorising them and letting you add notes. You can do some analysis in the app but also export to spreadsheets. For a long time I lived in slight fear that it was not being updated and would one day die. Well, it's just got an update, so my fears have been assuaged. There is now a very cheap subscription for the full functionality: fine. ### 5/5 — Einfach *2022-02-06* Gute App, tut was sie soll. Nur etwas schade, dass sie keine gute iPad Unterstützung hat ### 5/5 — Any chance of a update? iPhone X? *2020-12-06* Stopped working on IPhone X. Please do an update. Thanks ### 5/5 — Help! No longer opens *2020-11-06* I rely on this app every day to record my credit card spending. After yesterday’s update to 14.2, it crashes upon opening. ### 5/5 — Really good so far! *2020-04-25, version 5.2* I’m really enjoying it... the only thing that I noticed is that when I send it by email, I don’t see the total amount. ### 5/5 — Simple and perfect *2019-11-30* No bells and whistles! Love --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-15.*