# Smart Bolus Calculator vs MDSBA

The clearest difference is update cadence: MDSBA at every 3 weeks against Smart Bolus Calculator's every 3 months. Smart Bolus Calculator's advantage is iOS requirement (13.4 vs 15.1). 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.

Smart Bolus Calculator ships an update every 3 months, MDSBA every 3 weeks. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Smart Bolus Calculator | MDSBA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/smart-bolus-calculator/id6755656313/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 24 MB | 63 MB |
| Requires iOS | **13.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Smart Bolus Calculator LLC](https://appshunter.io/developer/1855309805) | [iClassPro Inc](https://appshunter.io/developer/1194756576) |

## What reviewers say

### Smart Bolus Calculator

[App page](https://appshunter.io/ios/app/smart-bolus-calculator/id6755656313)

This app assists individuals with diabetes in calculating insulin doses. It uses personalized settings like insulin-to-carbohydrate ratios and correction factors to determine accurate doses based on carbohydrate intake and current blood glucose levels.

**Highlights:** Personalized insulin dose calculation, Insulin-to-carbohydrate ratio input, Correction factor input, Insulin on board (IOB) calculation, Save personalized settings, Detailed dose history log

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

**In-app purchases:** none


### MDSBA

[App page](https://appshunter.io/ios/app/mdsba/id6760921335)

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

**In-app purchases:** none


## Frequently asked questions

### Is Smart Bolus Calculator free?

Smart Bolus Calculator is free to download, with no in-app purchases.

### Is MDSBA free?

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

### Do Smart Bolus Calculator or MDSBA have ads?

Neither Smart Bolus Calculator nor MDSBA shows ads.

### Which is updated more often, Smart Bolus Calculator or MDSBA?

Smart Bolus Calculator ships an update every 3 months, and MDSBA every 3 weeks. Most recently, Smart Bolus Calculator was updated on November 5, 2026 and MDSBA on October 31, 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.*