# Fill it Forward vs C3 Tech Summit

Fill it Forward and C3 Tech Summit are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Fill it Forward ships an update monthly, C3 Tech Summit fortnightly. The most recent releases landed on October 5, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Fill it Forward | C3 Tech Summit |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (16 ratings)](https://appshunter.io/ios/app/fill-it-forward/id1375687335/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 37.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Fortnightly** |
| Monetization | Free | — |
| Size | 184 MB | 244 MB |
| Requires iOS | **15.1** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Green Menu Inc.](https://appshunter.io/developer/966545400) | [Accelevents](https://appshunter.io/developer/1198208094) |

## What reviewers say

### Fill it Forward

[App page](https://appshunter.io/ios/app/fill-it-forward/id1375687335)

This app connects you to a community focused on giving back and environmental responsibility. Track your positive impact, contribute to charitable projects, and stay hydrated by scanning your reusable bottle or sticker.

**Highlights:** Contribute to charitable projects, Track environmental impact, Join community groups and leaderboards, Monitor beverage consumption, Earn status levels and discounts, Enter community draws, Find refill stations

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

**In-app purchases:** none

**What reviewers like**

- 💚 Meaningful environmental and social impact mission
- 💧 Motivates increased water consumption and hydration
- 🎯 Simple scanning concept for tracking reuses
- 🏆 Gamification features with groups and leaderboards
- 📊 Visual impact tracking showing environmental savings

**What reviewers complain about**

- 🐛 Frequent app crashes and freezing
- 📱 White screen/blank screen issues on launch
- 📷 Camera/scanner consistently fails to read QR codes
- ⏱️ Extremely slow loading times and performance lag
- 🔄 Data tracking inaccuracies and lost records

**Reported bugs**

- Camera scanner won't focus or read QR codes
- App crashes immediately after scanning
- White/blank screen appears on app launch
- Reuse data shows zero or incorrect values
- Profile picture cannot be saved

**Requested features**

- Add friends and create private group competitions
- Monthly/yearly impact statistics and history logs
- Daily water intake tracking by day/month/year
- Integration with Apple Health app for water tracking
- Support for multiple bottles with different sizes


### C3 Tech Summit

[App page](https://appshunter.io/ios/app/c3-tech-summit/id6747343416)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fill it Forward free?

Fill it Forward is free to download, with no in-app purchases.

### Is C3 Tech Summit free?

C3 Tech Summit is free to download, with no in-app purchases.

### Do Fill it Forward or C3 Tech Summit have ads?

Neither Fill it Forward nor C3 Tech Summit shows ads.

### Which is updated more often, Fill it Forward or C3 Tech Summit?

Fill it Forward ships an update monthly, and C3 Tech Summit fortnightly. Most recently, Fill it Forward was updated on October 5, 2026 and C3 Tech Summit on October 10, 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.*