# SignUpGenius vs Causer

The clearest difference is rating: Causer at 2.5 against SignUpGenius's 1.3. Causer also leads on ads (none vs shown) and review sentiment (32% vs 2%). On price, ratings volume, 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.

Causer holds the better App Store score, 2.5 against 1.3. Both are backed by a comparable volume of ratings — 63 and 84 respectively. Written reviews point the same way: 2% of SignUpGenius's written reviews are positive against 32% of Causer's.

SignUpGenius ships an update every 3 months, Causer fortnightly. The most recent releases landed on October 16, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | SignUpGenius | Causer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.3 (63 ratings)](https://appshunter.io/ios/app/signupgenius/id1314654833/reviews) | **[2.5 (84 ratings)](https://appshunter.io/ios/app/causer-get-connected/id1453746247/reviews)** |
| Number of ratings | 63 | **84** |
| Positive reviews | 1.9% of reviews | **31.8% of reviews** |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 20 MB | 64 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [SignUpGenius, Inc.](https://appshunter.io/developer/1314654832) | [Galaxy Digital](https://appshunter.io/developer/1453746246) |

## What reviewers say

### SignUpGenius

[App page](https://appshunter.io/ios/app/signupgenius/id1314654833)

Easily create and manage event sign-ups, volunteer schedules, and group activities from your phone. Coordinate participants, track RSVPs, send automated reminders, and collect payments securely. This tool streamlines event planning for schools, nonprofits, and community groups.

**Highlights:** Create online sign ups, Manage RSVPs and schedules, Send automated reminders, Collect payments and donations, Organize school and nonprofit events, Access sign ups on mobile

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to view signups you've joined
- 📱 Convenient mobile access to existing signups
- ✅ Website version works well for creation
- 🎯 Useful for quick signup verification

**What reviewers complain about**

- 📺 Excessive and intrusive advertisements covering screen
- 🔄 Requires re-login every time app opens
- 📝 Cannot create or edit signups in app
- 🖥️ Desktop website layout forced on mobile
- ⚠️ Blank screens and navigation failures

**Reported bugs**

- App crashes on startup or during use
- Login fails with correct credentials
- Blank/white screens after navigation
- Password entry causes app shutdown
- App locks out users after failed login attempts

**Requested features**

- Create and manage signups directly in app
- Push notifications for signup changes and events
- Favorites or bookmarks for frequently used signups
- Calendar view with date filtering
- Admin tools to edit volunteer assignments


### Causer

[App page](https://appshunter.io/ios/app/causer-get-connected/id1453746247)

Manage your volunteer schedule and engage with causes you care about. Track past and upcoming shifts, select new opportunities, and check in/out directly from your mobile device. Stay informed with push notifications and see the impact of your contributions.

**Highlights:** View past and upcoming volunteer shifts, Select new volunteer shifts, Push notifications for shifts, In-app check-in/check-out, Add hours manually, Calendar view of schedule, Track volunteer impact

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to sign up
- 👍 Simple check-in process
- 👍 Can track hours
- 👍 Manage volunteer schedule
- 👍 Toggle between non-profits

**What reviewers complain about**

- 🐛 App doesn't open
- 🐛 Blank screen after email entry
- 🐛 Dashboard doesn't load
- 🐛 App locks up
- 🐛 Clunky design

**Reported bugs**

- App does not open
- Blank white screen after entering email
- Dashboard fails to load
- App freezes unexpectedly
- Dashboard visualization is inaccurate (off by a day)

**Requested features**

- Needs a remember me button
- Update password field to accept spaces
- Add dark mode support
- Improve search functionality
- Fix login issues with Facebook/Apple ID


## Frequently asked questions

### Is SignUpGenius free?

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

### Is Causer free?

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

### Which has better reviews, SignUpGenius or Causer?

Causer is rated higher. SignUpGenius averages 1.3 out of 5 from 63 ratings, while Causer averages 2.5 from 84 ratings.

### Do SignUpGenius or Causer have ads?

SignUpGenius shows ads; Causer does not.

### Which is updated more often, SignUpGenius or Causer?

SignUpGenius ships an update every 3 months, and Causer fortnightly. Most recently, SignUpGenius was updated on October 16, 2026 and Causer on October 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.*