# MsgSecret vs Drilling Calculator for Rigs

The clearest difference is price: MsgSecret at Free against Drilling Calculator for Rigs's $1.99. Drilling Calculator for Rigs's advantage is in-app purchases (none vs 1) and update cadence (every 6 weeks vs every 68 months). On ads, device support and iOS requirement there is nothing between them.

MsgSecret is free to download; Drilling Calculator for Rigs costs $1.99 up front. MsgSecret sells 1 one-off in-app purchase. Drilling Calculator for Rigs asks for nothing beyond the download.

MsgSecret ships an update every 68 months, Drilling Calculator for Rigs every 6 weeks. The most recent releases landed on October 5, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | MsgSecret | Drilling Calculator for Rigs |
| --- | --- | --- |
| Price | **Free** | $1.99 |
| Rating | **[4.2 (5 ratings)](https://appshunter.io/ios/app/msgsecret/id958618403/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 83.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 68 months | **Every 6 weeks** |
| Monetization | Paid | — |
| Size | 6 MB | 7 MB |
| Requires iOS | **17.0** | 18.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Hassan Chizari](https://appshunter.io/developer/958618402) | [Aneesh Pradeep](https://appshunter.io/developer/1836157821) |

## What reviewers say

### MsgSecret

[App page](https://appshunter.io/ios/app/msgsecret/id958618403)

Securely encode and decode messages to protect your privacy from message providers and prying eyes. Share your ciphered messages via email, SMS, social media, and more. Offers multiple ciphering methods for varying security levels.

**Highlights:** Encode and decode messages, Multiple ciphering methods, Share via email, SMS, social media, Passcode/fingerprint authentication, Save ciphering settings for quick access, Shake gesture for encoding/decoding

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlimited Encryption without Adv | $0.99 | one-time |


### Drilling Calculator for Rigs

[App page](https://appshunter.io/ios/app/drilling-calculator-for-rigs/id6785307917)

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

**In-app purchases:** none


## Frequently asked questions

### Is MsgSecret free?

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

### Is Drilling Calculator for Rigs free?

Drilling Calculator for Rigs costs $1.99, with no in-app purchases.

### Do MsgSecret or Drilling Calculator for Rigs have ads?

Neither MsgSecret nor Drilling Calculator for Rigs shows ads.

### Which is updated more often, MsgSecret or Drilling Calculator for Rigs?

MsgSecret ships an update every 68 months, and Drilling Calculator for Rigs every 6 weeks. Most recently, MsgSecret was updated on October 5, 2026 and Drilling Calculator for Rigs on October 6, 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.*