Comparison

Uplode vs Ninja

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

Head to head
About

Uplode

This app allows research participants to easily complete surveys and engage in health interventions. It provides custom activities with instructions and data collection, aiming to boost participant retention through reminders and secure, effective participation.

Highlights
  • Customizable research activities
  • Survey and data collection
  • Health intervention participation
  • Participant retention tools
  • Notification reminders
  • Secure and effective participation
Features
Read full description

Uplode is the customizable research app where participants can easily answer surveys and participate in research interventions. Custom research activities provide instructions, collect qualitative and/or quantitative data, and health data. Increases participant retention rates by putting studies right in the hands of participants, with notification reminders and survey formats that make participation in your study easy, secure, and effective.

About

Ninja

This AI-powered assistant helps students and professionals by generating essays with real-time sources, transforming handwritten notes into study guides, and solving homework problems from photos. It also offers integrated document and presentation tools, with a choice of advanced AI models.

Highlights
  • Advanced essay writing with real-time sources
  • Convert handwritten notes to study guides
  • Image-based homework explanation and problem-solving
  • Integrated document and presentation creation
  • Choice of AI models (GPT-4, Claude, etc.)
Features
Read full description

Introducing Ninja, the quintessential app that redefines your educational and professional experience with its unparalleled capabilities. Ninja is a comprehensive tool that elevates your work to new heights, tailor-made for students, professionals, and anyone in need of a powerful assistant. Key Features of Ninja: * Advanced Essay Functionality: Ninja stands out with its superior essay-writing features. Ninja integrates real-time sources, crafting essays that are not just well-written but also rich in content and references. * Supercharged Note-Taking: Transform your handwritten notes into high-quality, personalized guides. With Ninja, just take a picture of your notes, and the app converts them into textbook-quality material, customized to your learning style. * Image Understanding for Homework Help: Stuck on a math problem or a complex science question? Simply snap a photo of your homework, and Ninja's AI will not only explain it but also guide you through solving it. * All-in-One Document and Presentation Tool: Ninja combines document and slide creation into one seamless interface. Whether you're drafting a report or preparing a presentation, Ninja's integrated editors ensure a smooth, efficient workflow. * Choice of AI Models: Select from a range of AI models including NINJA-1, GPT-4, Perplexity, and Claude. Each model brings its unique strengths, from offering real-time information to enhancing creative output, ensuring you always have the best tool for the task. Ninja is more than an app; it's your personal AI-powered companion, designed to enhance your productivity, creativity, and learning. Embrace the future of work and education with Ninja. Terms of Use: https://www.workninja.com/terms-of-service.pdf Privacy Policy: https://www.workninja.com/privacy-policy.pdf

Screenshots

Uplode4 screens
Ninja4 screens

Verdict

The call

The clearest difference is in-app purchases: Uplode at none against Ninja's 11. Ninja's advantage is ratings volume (11K vs 3) and iOS requirement (13.4 vs 17.6). On price, rating, update cadence and ads 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. Ninja sells 11 in-app purchases, starting at $2.99 per 7 days. Uplode asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Uplode against 4.9 for Ninja. That said, the two scores are not equally well evidenced: Ninja has 11K ratings behind it against 3, so its average is the more settled of the two.

UpkeepUpdate frequency

Uplode ships an update fortnightly, Ninja every 2 weeks. The most recent releases landed on October 6, 2026 and October 18, 2026 respectively.

Scorecard4 real differences · 6 level
Uplode versus Ninja: the parameters behind the verdict, then further details
ParameterUplodeNinja
PriceFreeFree
Rating5.0 (3 ratings) — better4.9 (11K ratings)
Positive reviews—92.1% of reviews
Number of ratings311K — better
Update frequencyFortnightlyEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.613.4 — better
Further details — not scored
Size40 MB52 MB
Age rating4+4+
DeveloperSenda, LLCJoseph Semrai

Customer experience

Uplode

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

Ninja

All ratings11,025 ratings
Positive98.6%
Neutral0.3%
Negative1.2%
Written reviews203 reviews
Positive92.1%
Neutral0.5%
Negative7.4%

Bugs and requests

Uplode

Not enough reviews yet to summarise bugs or requests.

Ninja

Reported bugs

2 issues
  • Login screen freezes
  • Compatibility issues with older devices

Requested features

3 requests
  • Dark mode option
  • Expanded collaboration tools
  • Enhanced security and backup features

In-app purchases

None

Uplode

No in-app purchases

11 purchases

Ninja

Subscriptions5
  • Weekly Plan3 Days trial$2.997 Days
  • Basic$4.991 Month
  • Pro$9.991 Month
Show 2 more
  • Premium Monthly$9.991 Month
  • Expert$19.991 Month
One-time6
  • 100 Tokens$4.99
  • Buy 250 Tokens$7.99
  • Basic$9.99
Show 3 more
  • 1500 Tokens$14.99
  • Expert$49.99
  • Lifetime Plan$69.99

Questions

Is Uplode free?
Uplode is free to download, with no in-app purchases.
Is Ninja free?
Ninja is free to download, with in-app purchases available.
Which has better reviews, Uplode or Ninja?
Uplode is rated higher. Uplode averages 5.0 out of 5 from 3 ratings, while Ninja averages 4.9 from 11K ratings.
Do Uplode or Ninja have ads?
Neither Uplode nor Ninja shows ads.
Which is updated more often, Uplode or Ninja?
Uplode ships an update fortnightly, and Ninja every 2 weeks. Most recently, Uplode was updated on October 6, 2026 and Ninja on October 18, 2026.

Other comparisons