# Dr. DE vs ConnectedGrants

The clearest difference is update cadence: ConnectedGrants at every 3 weeks against Dr. DE's every 3 months. 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.

Dr. DE ships an update every 3 months, ConnectedGrants every 3 weeks. The most recent releases landed on October 7, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | Dr. DE | ConnectedGrants |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (16 ratings)](https://appshunter.io/ios/app/dr-de/id954796004/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 55.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | Free | — |
| Size | 33 MB | 28 MB |
| Requires iOS | **15.6** | 16.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 17+ | 4+ |
| Developer | [Pegasus Vertex, Inc.](https://appshunter.io/developer/954796003) | [City of Grants, NM](https://appshunter.io/developer/1892537087) |

## What reviewers say

### Dr. DE

[App page](https://appshunter.io/ios/app/dr-de/id954796004)

This mobile toolbox simplifies complex drilling engineering calculations. It offers a comprehensive suite of 29 functions across 11 categories, eliminating the need for handbooks and improving efficiency for engineers and technicians.

**Highlights:** 29 drilling engineering functions, 11 functional groups, Bit hydraulics calculations, Hole cleaning analysis, Well control solutions, Unit conversion tools, Tank capacity calculations

**Features:** macOS Compatibility

**In-app purchases:** none


### ConnectedGrants

[App page](https://appshunter.io/ios/app/connectedgrants/id6762027011)

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

**In-app purchases:** none


## Frequently asked questions

### Is Dr. DE free?

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

### Is ConnectedGrants free?

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

### Do Dr. DE or ConnectedGrants have ads?

Neither Dr. DE nor ConnectedGrants shows ads.

### Which is updated more often, Dr. DE or ConnectedGrants?

Dr. DE ships an update every 3 months, and ConnectedGrants every 3 weeks. Most recently, Dr. DE was updated on October 7, 2026 and ConnectedGrants on October 17, 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.*