# NBTC e vs Promise Box

The clearest difference is in-app purchases: NBTC e at none against Promise Box's 1. NBTC e also leads on ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. Promise Box sells 1 one-off in-app purchase. NBTC e asks for nothing beyond the download.

NBTC e ships an update every 4 months, Promise Box every 7 months. The most recent releases landed on September 14, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | NBTC e | Promise Box |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.5 (4 ratings)](https://appshunter.io/ios/app/promise-box/id1050982819/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | — | 93.1% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 4 months** | Every 7 months |
| Monetization | — | Free with in-app purchases |
| Size | 21 MB | 14 MB |
| Requires iOS | 12.1 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Office of The National Broadcasting and Telecommunications Commission](https://appshunter.io/developer/721507053) | [Gabriel Silva](https://appshunter.io/developer/868987086) |

## What reviewers say

### NBTC e

[App page](https://appshunter.io/ios/app/nbtc-e-library/id955374020)

**Features:** macOS Compatibility

**In-app purchases:** none


### Promise Box

[App page](https://appshunter.io/ios/app/promise-box/id1050982819)

Access God's promises offline, save favorite verses, and share them with loved ones. A widget provides daily verses for inspiration.

**Highlights:** Offline access to promises, Save favorite verses, Share verses with others, Daily verse widget, Supports iPhone, iPad, iPod

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is NBTC e free?

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

### Is Promise Box free?

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

### Do NBTC e or Promise Box have ads?

Promise Box shows ads; NBTC e does not.

### Which is updated more often, NBTC e or Promise Box?

NBTC e ships an update every 4 months, and Promise Box every 7 months. Most recently, NBTC e was updated on September 14, 2026 and Promise Box on September 15, 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.*