# SiDiary vs GateKeeper by Gate Science

SiDiary and GateKeeper by Gate Science are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

## The numbers

| Metric | SiDiary | GateKeeper by Gate Science |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (7 ratings)](https://appshunter.io/ios/app/sidiary/id389582724/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 56.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | — |
| Monetization | Free | — |
| Size | 34 MB | 36 MB |
| Requires iOS | 11.0 | 11.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Sinovo Ltd. & Co. KG](https://appshunter.io/developer/387195226) | [Gate Science, Inc.](https://appshunter.io/developer/1711137434) |

## What reviewers say

### SiDiary

[App page](https://appshunter.io/ios/app/sidiary/id389582724)

This app helps manage diabetes by logging blood glucose, blood pressure, medication, and carbohydrate intake. It offers data entry, statistical graphics, trend analysis, and synchronization with a desktop version.

**Highlights:** Blood glucose logging, Blood pressure tracking, Medication and carbohydrate entry, Statistical graphics and trend analysis, Data synchronization with desktop, Support for various glucose meters, Customizable data types and units

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

**In-app purchases:** none


### GateKeeper by Gate Science

[App page](https://appshunter.io/ios/app/gatekeeper-by-gate-science/id6468975740)

**In-app purchases:** none


## Frequently asked questions

### Is SiDiary free?

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

### Is GateKeeper by Gate Science free?

GateKeeper by Gate Science is free to download, with no in-app purchases.

### Do SiDiary or GateKeeper by Gate Science have ads?

Neither SiDiary nor GateKeeper by Gate Science shows ads.

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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.*