# BuyBye vs 100 Envelope Challenge

The clearest difference is monetization model: 100 Envelope Challenge at free with in-app purchases against BuyBye's subscription. 100 Envelope Challenge also leads on rating (5.0 vs 4.5). BuyBye's advantage is update cadence (fortnightly vs every 3 months) and ratings volume (1.8K vs 4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. BuyBye sells 10 in-app purchases, starting at $3.99 per 7 days and 100 Envelope Challenge sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

100 Envelope Challenge holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: BuyBye has 1.8K ratings behind it against 4, so its average is the more settled of the two.

BuyBye ships an update fortnightly, 100 Envelope Challenge every 3 months. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | BuyBye | 100 Envelope Challenge |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (1.8K ratings)](https://appshunter.io/ios/app/buybye-budget-planner/id6744707747/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/100-envelope-challenge/id6779838041/reviews)** |
| Number of ratings | **1.8K** | 4 |
| Positive reviews | 10.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 62 MB | 11 MB |
| Requires iOS | **16.0** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BuyBye Inc.](https://appshunter.io/developer/1805580728) | [Ikuhei Kure](https://appshunter.io/developer/1837581334) |

## What reviewers say

### BuyBye

[App page](https://appshunter.io/ios/app/buybye-budget-planner/id6744707747)

This app helps you curb impulse spending by showing the real cost of purchases in terms of work hours. It offers features to pause buying decisions and block shopping apps, encouraging intentional spending and savings tracking.

**Highlights:** Visualize purchase cost in work hours, Cooldown period for impulse buys, Block shopping apps, Savings tracking, 100 Envelope Savings Challenge, Milestone rewards

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| BuyBye Weekly Plan | $3.99 | per 7 days |
| BuyBye Monthly Plan | $5.99 | per month |
| BuyBye Quarterly Plan | $9.99 | per 3 months |
| BuyBye Yearly Winback | $19.99 | per year |
| BuyBye Yearly Plan | $19.99 | per year |
| BuyBye Yearly Plan | $23.99 | per year |
| BuyBye Yearly Plan | $26.99 | per year |
| BuyBye Yearly Plan | $29.99 | per year |
| BuyBye Yearly Plan | $29.99 | per year |
| BuyBye Lifetime | $29.99 | one-time |

**What reviewers complain about**

- 💰 Forced subscription
- 💰 Paid app for a basic calculator
- 💰 Pay to save money
- 💰 Not really free to use
- 💰 Subscription required to use app

**Reported bugs**

- Too many pop-ups


### 100 Envelope Challenge

[App page](https://appshunter.io/ios/app/100-envelope-challenge/id6779838041)

This app gamifies saving money by letting you track progress on various savings challenges, like the 100 Envelope Challenge. It offers visual feedback and customizable options to keep you motivated. Unlock all features with a one-time purchase.

**Highlights:** Gamified savings progress visualization, Customizable challenge rules, Multiple savings challenge types, Streak tracking and motivation tools, Home Screen widget for goal visibility, Optional daily reminders

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium | $4.99 | one-time |


## Frequently asked questions

### Is BuyBye free?

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

### Is 100 Envelope Challenge free?

100 Envelope Challenge is free to download, with in-app purchases available.

### Which has better reviews, BuyBye or 100 Envelope Challenge?

100 Envelope Challenge is rated higher. BuyBye averages 4.5 out of 5 from 1.8K ratings, while 100 Envelope Challenge averages 5.0 from 4 ratings.

### Do BuyBye or 100 Envelope Challenge have ads?

Both BuyBye and 100 Envelope Challenge show ads.

### Which is updated more often, BuyBye or 100 Envelope Challenge?

BuyBye ships an update fortnightly, and 100 Envelope Challenge every 3 months. Most recently, BuyBye was updated on November 8, 2026 and 100 Envelope Challenge 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.*