Upend vs Modeldle
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Upend compared with Modeldle
| Detail | 
Upend | 
Modeldle |
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| What it does | Challenge a friend to wake up, do the work, and beat them
| A free daily quiz about AI models with sourced answers
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| Stage | Not given
| Not given
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| Founded | Not given
| Not given
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| Based in | Not given
| Not given
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| Pricing model | Free
| Free
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| Pricing | Not given
| Not given
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| Key features | - Real system alarm that starts the race
- Camera-based rep counting for squats and exercises
- Barcode scanning for proof of completion
- Photo evidence verification
- Hidden time scoring until both players finish
- Series score and win streak tracking
- Did Not Start tracking for missed challenges
- Offline-capable with server synchronization
- No video recording or transmission
- Self-report verification option
| - Daily 8-question quiz about AI models
- Weekly 10-question quiz every Friday at 10:00 UTC
- Source links for every answer
- Archive of past quizzes
- Streaks and badges tracking
- Click or tap only gameplay, no typing
- Trading card result grading system
- Share scores with green and red squares
- No account required to play
- Optional sign-in to track streaks across devices
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| What makes it different | - Times stay completely hidden until both players finish, eliminating spoilers
- Fair scoring based on personal alarm time regardless of wake-up hour
- No video ever recorded, stored or transmitted for privacy
- Works fully offline without requiring signal
- Tamper-proof with server-side timestamp verification
| - Independent and not affiliated with any AI lab
- Values frozen with as-of dates so archived quizzes match exactly what players saw
- Progressive difficulty ramping from easy to hard questions
- Free to play with no ads
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| Free plan | Not given
| Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 3 ● no change since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 19 | 0 |
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| Citation Flow (Majestic) | 9 | 13 |
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| Referring domains (Majestic) | 16 | 3 |
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4 details filled in for both companies.
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