Comparison

marcel vs Caspius

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

marcel

Explore a vast collection of art from various periods and genres. Engage in discussions, share insights, and discover what others notice about specific artworks. Post comments anonymously or with attribution.

Highlights
  • Discover art from diverse periods and genres
  • See what others notice about artworks
  • Embedded comments referencing specific details
  • Engage in discussions about art
  • Post comments anonymously or with attribution
  • Guide feed by period or genre
Features
Read full description

Marcel allows you to discover art you might like and see what others notice about the works you find interesting. Including works from the Fayum portraits of Ancient Egypt to the Surrealist works created in 20th century Europe, scroll through hundreds of thousands of art pieces, or guide the gallery feed toward a period, genre, etc that you'd like to explore.   Comments in Marcel are embedded into the works to reference specific details. Head over to the discussions to find the details that stood out and what people had to say about them. Post anonymously or choose an attribution to be recognized with.

About

Caspius

This app lets you record everyday household tasks to help train AI for robotics. You earn points for each approved video submission, contributing to real-world research and development. Track your progress and earnings as you help teach robots how to perform common chores.

Highlights
  • Record everyday tasks
  • Earn points for submissions
  • Contribute to AI research
  • Track progress and earnings
  • Browse and pick available tasks
  • Leaderboard rankings
Features
Read full description

Caspius turns your everyday routines into valuable training data for robotics AI — and rewards you for it. Pick a task, hit record, and show how you do things like wiping a table, folding clothes, or loading a dishwasher. Each completed recording earns you points. It's that simple. The data you contribute helps researchers and developers teach robots how to perform real-world household tasks. No special equipment needed — just your iPhone and a few minutes. What you can do: – Browse available tasks and pick what works for you – Record short demonstration videos using your phone's camera – Earn points for every approved submission – Track your progress and earnings in the app Whether you've got five spare minutes or an hour, there's always a task to pick up. The more you contribute, the higher you rank on the leaderboard. Built by Caspius.

Screenshots

marcel3 screens
Caspius4 screens

Verdict

The call

The clearest difference is ads: Caspius at none against marcel's shown. Caspius also leads on update cadence (every 3 days vs every 2 weeks) and monetization model (free vs ad-supported). marcel's advantage is ratings volume (3 vs 1) and iOS requirement (15.1 vs 26.0). On price, rating, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for marcel against 5.0 for Caspius. Both are backed by a comparable volume of ratings — 3 and 1 respectively.

UpkeepUpdate frequency

marcel ships an update every 2 weeks, Caspius every 3 days. The most recent releases landed on October 30, 2026 and October 31, 2026 respectively.

Scorecard5 real differences · 4 level
marcel versus Caspius: the parameters behind the verdict, then further details
ParametermarcelCaspius
PriceFreeFree
Rating5.0 (3 ratings)5.0 (1 ratings)
Number of ratings3 — better1
Update frequencyEvery 2 weeksEvery 3 days — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPod — betteriPhone
Requires iOS15.1 — better26.0
Further details — not scored
Size75 MB37 MB
Age rating17+4+
DeveloperIgor NikolskiyCaspius Dev

Customer experience

marcel

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Caspius

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

marcel

No in-app purchases

None

Caspius

No in-app purchases

Questions

Is marcel free?
marcel is free to download, with no in-app purchases.
Is Caspius free?
Caspius is free to download, with no in-app purchases.
Which has better reviews, marcel or Caspius?
marcel and Caspius are both rated 5.0 out of 5 on the App Store, from 3 and 1 ratings respectively.
Do marcel or Caspius have ads?
marcel shows ads; Caspius does not.
Which is updated more often, marcel or Caspius?
marcel ships an update every 2 weeks, and Caspius every 3 days. Most recently, marcel was updated on October 30, 2026 and Caspius on October 31, 2026.

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