Comparison

CGMSIM vs Cram AI

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

Head to head
About

CGMSIM

Simulate managing Type 1 Diabetes by administering meals and insulin. Maintain target blood glucose levels while minimizing lows and highs. Integrate activity data for a realistic experience.

Highlights
  • Virtual Type 1 Diabetes subject management
  • Meal and insulin administration (MDI/CSII)
  • Glycemic target range maintenance
  • Hypo/hyperglycemia alerts
  • Activity tracker integration (Fitbit, Google Fit)
  • Nightscout CGM trace display
  • Success report generation
Features
Read full description

CGMSIM lets you create a virtual Type 1 Diabetes subject, that you'll treat 24/7 with meals, multiple daily insulin injections (MDI) or a virtual insulin pump (CSII - continuous subcutaneous insulin infusion). Your goal is to maintain your virtual subject's glycemia in the treatment range 70-180 mg/dl (3.9 - 10 mmol/l) at least 70% of the time, with as few low glucose values as possible. Optional hypo- and hyperglycemia are delivered as push notifications and email alerts. CGMSIM imports your Fitbit® activity tracker's or Google Fit® activity data (steps, heart rate), which influence your subject's glycemic status. The CGM trace is displayed in Nightscout, where success reports can be generated.

About

Cram AI

Transform any content into AI-powered study materials like notes, flashcards, quizzes, and engaging video summaries. This tool helps students ace exams by making learning more efficient and entertaining.

Highlights
  • AI study notes from videos, PDFs, and text
  • Interactive flashcards and quizzes
  • Mind map generation for visual learning
  • AI Study Reels with animated subtitles
  • Feynman Technique mode for self-explanation
  • AI chat for note clarification
Features
Read full description

Cram AI: Study Notes, Quiz, Flashcards & AI Study Reels Cram AI turns videos, PDFs, images and text into AI study notes, flashcards, quizzes, mind maps and now short AI Study Reels with animated subtitles. Ace exams with study tools built for college, school, and SAT/ACT prep. NEW: AI Study Reels Turn any topic into a short Minecraft-style video explained by one of unique AI teacher characters with synced animated subtitles. Create Smart Notes from Any Source * YouTube videos (no downloading needed) * PDFs and documents * Images and screenshots * Typed or pasted text * Live class and voice recordings Turn Notes into Study Tools * AI Study Reels with animated subtitles and character voiceover * Mind maps for visual learning and big-picture understanding * Flashcards for spaced repetition and quick revision * Quizzes to test yourself before exams * AI chat for every note to explain, simplify, and answer questions Feynman Technique Mode Explain a topic as if teaching an 8, 15, or 22-year-old and get instant AI feedback on what you remembered, what you missed, and where to improve. Why Students Use Cram AI * AI Study Reels that make studying actually entertaining * AI note maker from any source * Study helper for last-minute revision * All-in-one: notes, flashcards, quizzes, mind maps, and AI tutor * Useful for school, college, competitive exams, and self-learning Cram AI helps you study smarter, save hours of manual note-taking, and feel confident before every test. Terms of Use: https://sites.google.com/view/cram-ai-terms-of-use/ Privacy Policy: https://sites.google.com/view/cramlockai-privacy-policy/

Screenshots

CGMSIM4 screens
Cram AI4 screens

Verdict

The call

The clearest difference is in-app purchases: CGMSIM at none against Cram AI's 3. CGMSIM also leads on device support (3 vs 1). Cram AI's advantage is update cadence (every 11 days vs every 2 months). On price, rating, ratings volume 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. Cram AI sells 3 in-app purchases, starting at $4.99 per 7 days. CGMSIM 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 CGMSIM against 5.0 for Cram AI. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

UpkeepUpdate frequency

CGMSIM ships an update every 2 months, Cram AI every 11 days. The most recent releases landed on September 16, 2026 and June 11, 2026 respectively.

Scorecard4 real differences · 6 level
CGMSIM versus Cram AI: the parameters behind the verdict, then further details
ParameterCGMSIMCram AI
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews100.0% of reviews—
Number of ratings2 — better1
Update frequencyEvery 2 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS15.1 — better16.6
Further details — not scored
Size43 MB253 MB
Age rating12+4+
DeveloperLorenzo SandiniNishit Dave

Customer experience

CGMSIM

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Cram AI

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

In-app purchases

None

CGMSIM

No in-app purchases

3 purchases

Cram AI

Subscriptions3
  • Weekly$4.997 Days
  • Monthly$9.991 Month
  • Yearly$49.991 Year

Questions

Is CGMSIM free?
CGMSIM is free to download, with no in-app purchases.
Is Cram AI free?
Cram AI is free to download, with in-app purchases available.
Which has better reviews, CGMSIM or Cram AI?
CGMSIM and Cram AI are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do CGMSIM or Cram AI have ads?
Neither CGMSIM nor Cram AI shows ads.
Which is updated more often, CGMSIM or Cram AI?
CGMSIM ships an update every 2 months, and Cram AI every 11 days. Most recently, CGMSIM was updated on September 16, 2026 and Cram AI on June 11, 2026.

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