Comparison

Underfoot vs MonGram English

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

Head to head
About

Underfoot

Features
Read full description

Discover What's Under Your Feet!  A Global Adventure in Your Pocket! Ever wondered what's on the exact opposite side of the Earth from where you are? Underfoot takes you on an incredible journey through our planet, letting you instantly explore antipodal points and discover fascinating places you never knew existed! Key Features: Dig Through the Earth - Instantly travel to the opposite side of any location Explore Local Stories - Uncover hidden gems and fascinating histories within 10km of any spot Random Adventures - Let serendipity guide you to amazing places worldwide Geography Challenge - Test your global knowledge with our fun country-guessing game Wikipedia Integration - Learn about any location with rich, detailed information Perfect for: Geography enthusiasts Travel lovers Students and educators Anyone curious about our world  Start your global adventure today and discover the amazing stories that lie beneath your feet!

About

MonGram English

Master English grammar with comprehensive lessons, smart practice tools, and progress tracking. This ad-free and subscription-free app offers offline access to all content, making it ideal for learners of all levels.

Highlights
  • 101 grammar topics
  • 292 rules with examples
  • SM-2 spaced repetition
  • Adaptive Daily Challenge
  • Offline access
  • Progress tracking
  • Mock tests
Features
Read full description

Master English grammar — the way it finally clicks. From your very first sentence to confident, exam-ready writing, MonGramm guides you through every rule with clear explanations, real examples, and instant audio. FULL A1 → C2 COVERAGE • 101 grammar topics across all 6 CEFR levels • 292 rules with clear formulas and bilingual examples • 600+ example sentences with crisp, natural Studio-O voice audio • Common-mistake breakdowns written by real teachers • Irregular verbs, phrasal verbs, idioms, collocations & cheat sheets SMART PRACTICE THAT ADAPTS TO YOU • Daily Challenge that scales to your level • Fast-paced drills: streak runs, verb conjugation, matching • SM-2 spaced repetition locks grammar into long-term memory • Smart Practice automatically targets your weak spots • 4 mock-test formats: TOEIC, IELTS, CEFR & mixed PROGRESS YOU CAN SEE • Streak counter and 7-day activity heatmap • Per-level mastery: coverage and accuracy at a glance • 24 achievements to unlock • Bookmark any topic, rule, or quiz LEARN ANYWHERE — FULLY OFFLINE Every lesson and audio clip lives right inside the app. On a plane, on the subway, off the grid — it just works. No buffering. No ads. No distractions. NOTIFICATIONS DONE RIGHT Up to 4 grammar tips and 4 practice nudges a day, smartly scheduled around the times you're already studying. Turn them off anytime. STUDY IN YOUR LANGUAGE Full interface in English, Vietnamese, Traditional Chinese, and Simplified Chinese, with bilingual glosses throughout. Switch anytime in Settings. MADE FOR • Students prepping for IELTS, TOEFL & TOEIC • Self-learners closing their grammar gaps • Professionals sharpening workplace English • Anyone who wants to write and speak with structure SUPPORT Feedback: support@monchinese.me Privacy: https://monchinese.me/en/privacy Terms: https://monchinese.me/en/terms

Screenshots

Underfoot4 screens
MonGram English4 screens

Verdict

The call

The clearest difference is in-app purchases: Underfoot at none against MonGram English's 1. MonGram English's advantage is iOS requirement (15.0 vs 18.0). On price, ads 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. MonGram English sells 1 one-off in-app purchase. Underfoot asks for nothing beyond the download.

Scorecard2 real differences · 7 level
Underfoot versus MonGram English: the parameters behind the verdict, then further details
ParameterUnderfootMonGram English
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequency—Every 4 weeks
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Free
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS18.015.0 — better
Further details — not scored
Size19 MB66 MB
Age rating4+4+
DeveloperRobert OrtnerHung Vi Van

In-app purchases

None

Underfoot

No in-app purchases

1 purchases

MonGram English

One-time1
  • Lifetime Premium$4.99

Questions

Is Underfoot free?
Underfoot is free to download, with no in-app purchases.
Is MonGram English free?
MonGram English is free to download, with in-app purchases available.
Do Underfoot or MonGram English have ads?
Neither Underfoot nor MonGram English shows ads.

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