Comparison

Meridian 157 vs Sumloom

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

Head to head
About

Meridian 157

Embark on a thrilling point-and-click adventure as a forensic meteorologist trapped on a mysterious island. Solve intricate puzzles and uncover secrets to escape a dangerous underground environment. This installment features immersive visuals, custom music, and a logical hint system.

Highlights
  • Interactive point-and-click puzzles
  • Intriguing storyline across chapters
  • Immersive environments and high-quality visuals
  • Item combine feature
  • Logical hint system
  • Multi-language support
  • Color blind mode
Features
Read full description

In both a figurative and literal sense, forensic meteorologist David Zander has hit rock bottom. Trapped deep underground on a lost and forgotten island, David’s priority shifts from finding answers about the mystery surrounding him, to surviving the crisis he now finds himself trapped in. It’s now up to you to find an escape from the madness of meridian 157, but be warned, as escape may not come so easily. Will David find the answers he searched so hard for, or will his efforts all be in vain? Meridian 157 is a point and click adventure series involving interactive puzzles and an intriguing storyline taking place over a long series of chapters. Built using state of the art rendering technology, this installment focuses on immersing players in unique and frightening environments, while allowing them to enjoy notable puzzles and engaging interactions. Try out the fully free prologue to get a taste for what the Meridian series has to offer! Features: • Custom written music to compliment the high quality visuals • All new item combine feature, supporting many different styles of play • Latest episode continuing a spooky and thrilling storyline • Challenging but • A logical hint system for some of the most difficult riddles • Available in 8 languages, including English, French, Russian, German, Chinese (Mandarin), Spanish, Portuguese, Italian and Japanese! • New colour blind mode available for people who might have trouble with colour based puzzles Follow us on Facebook and Twitter to receive all the latest news! Facebook: https://www.facebook.com/NovaSoftInteractive/ Twitter: https://twitter.com/novasoftint

About

Sumloom

A compact number puzzle game where you swipe through tiles to match sums and complete orders. Create loops to double your rewards and enjoy endless levels with streak bonuses. Play offline with no ads or registration required.

Highlights
  • One-finger swipe controls
  • Three orders available simultaneously
  • Small even numbers for simple calculations
  • Endless levels and streak bonuses
  • Double rewards for closed loops
  • Boosts: Refresh, Swap, Undo
  • Daily challenges
Read full description

Sumloom — компактная головоломка о числах, цепочках и петлях. Выберите один из трёх коротких заказов и проведите пальцем через соседние плитки с числами 2, 4, 6 и 8. Соберите точную сумму, чтобы выполнить заказ. Замкните линию в петлю, захватите клетки внутри и удвойте награду. Обычная игра не ограничена партиями: каждые 10 заказов начинается новый уровень. Выполняйте заказы подряд, увеличивайте множитель серии и улучшайте рекорд столько, сколько захотите. В игре есть: • понятное управление одним пальцем; • три доступных заказа одновременно; • небольшие чётные числа без сложных вычислений; • бесконечные уровни и бонусы за серии; • удвоенная награда за замкнутые петли; • бусты «Обновить», «Обмен» и «Отмена»; • интерактивное обучение прямо на игровом поле; • ежедневное испытание, одинаковое для выбранной даты; • локальные достижения, статистика и цветовые темы; • звук, вибрация и настраиваемая интенсивность эффектов; • автоматическое сохранение бесконечной игры; • полноценная работа без регистрации, рекламы и интернета. Играйте короткими сессиями или улучшайте рекорд столько, сколько захотите. Все игровые данные остаются на вашем iPhone.

Screenshots

Meridian 1574 screens
Sumloom4 screens

Verdict

The call

The clearest difference is price: Sumloom at Free against Meridian 157's $2.99. Sumloom also leads on update cadence (every 2 days vs every 5 weeks) and rating (5.0 vs 4.8). Meridian 157's advantage is ratings volume (4.2K vs 1) and device support (3 vs 1). On review sentiment, ads, in-app purchases and monetization model 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

Sumloom is free to download; Meridian 157 costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Sumloom holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Meridian 157 has 4.2K ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 94% of Meridian 157's written reviews are positive against 100% of Sumloom's.

UpkeepUpdate frequency

Meridian 157 ships an update every 5 weeks, Sumloom every 2 days. The most recent releases landed on October 17, 2026 and October 12, 2026 respectively.

Scorecard6 real differences · 4 level
Meridian 157 versus Sumloom: the parameters behind the verdict, then further details
ParameterMeridian 157Sumloom
Price$2.99Free — better
Rating4.8 (4.2K ratings)5.0 (1 ratings) — better
Positive reviews93.8% of reviews100.0% of reviews — better
Number of ratings4.2K — better1
Update frequencyEvery 5 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad, iPod — betteriPhone
Requires iOS13.0 — better17.0
Further details — not scored
Size326 MB3 MB
Age rating9+4+
DeveloperNovaSoft Interactive LtdLLC VIZIRION

Customer experience

Meridian 157

All ratings4,162 ratings
Positive97.1%
Neutral2.0%
Negative0.9%
Written reviews385 reviews
Positive93.8%
Neutral3.4%
Negative2.9%

Sumloom

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Meridian 157

Reported bugs

3 issues
  • Red drawer not opening with key
  • Sound turning off when device locked
  • Pipe puzzle clues not clear

Requested features

4 requests
  • More chapters/episodes
  • Ability to revisit past diary entries
  • More varied puzzle types
  • Panning/zooming camera controls

Sumloom

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Meridian 157

No in-app purchases

None

Sumloom

No in-app purchases

Questions

Is Meridian 157 free?
Meridian 157 costs $2.99, with no in-app purchases.
Is Sumloom free?
Sumloom is free to download, with no in-app purchases.
Which has better reviews, Meridian 157 or Sumloom?
Sumloom is rated higher. Meridian 157 averages 4.8 out of 5 from 4.2K ratings, while Sumloom averages 5.0 from 1 ratings.
Do Meridian 157 or Sumloom have ads?
Neither Meridian 157 nor Sumloom shows ads.
Which is updated more often, Meridian 157 or Sumloom?
Meridian 157 ships an update every 5 weeks, and Sumloom every 2 days. Most recently, Meridian 157 was updated on October 17, 2026 and Sumloom on October 12, 2026.

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