Comparison

Spirolaterals vs BugPlanetEra

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

Head to head
About

Spirolaterals

Features
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Spirolaterals allows you to explore geometric line designs based on applying a simple rule to a number sequence. Be warned though: spirolaterals can be very addictive! You can create your own spirolaterals by entering a number or text like your name. Or you can explore the gallery of 80 spirolaterals by tapping Surprise Me! Spirolaterals raise many interesting questions: Which ones repeat and why? What kinds of symmetry are present? What happens when you use a palindrome or when your numbers increase or decrease by the same amount? I have used Spirolaterals in my math classes for many years, and students always find them fascinating. They try their name or phone number. They try to create some particular pattern. This year some students spent hours trying to create a 4x4 grid! If you create an interesting spirolateral, email me and I may include it in the Surprise Me! gallery in a future version, with full credit to you!

About

BugPlanetEra

Features
Read full description

[Main function description] - 30+ Languages: Chinese (Taiwan), Chinese (China), Chinese (Hong Kong), Japanese, English (US), English (UK), English (Australia), English (Ireland), English (South Africa), Korean (South Korea), Thai, Indonesia (Indonesia), Hindi (India), Czech, Danish, Dutch (Belgium), Dutch (Netherlands), Finnish, French (Canada), French (France), German, Greek, Hungarian English, Italian, Norwegian, Polish, Portuguese (Brazil), Portuguese (Portugal), Romanian, Slovak, Spanish (Mexico), Spanish (Spain), Swedish, Turkish, Saudi Arabic (Saudi). - Playable content:        · Number: 0 ~ 99.        · Latin alphabet: A ~ Z.        · Scale: Do ~ Si.        · Pattern: 145. - million+ Themes: · Increasing difficulty: Use "single-finger gesture" to swipe up, down, left, and right to increase or decrease the number of cards. · Number of cards: iPhone "2 ~ 60", iPad "2 ~ 140". · Card color: 10 * 10 ( blue, black / white, gray, green, yellow, orange, purple, pink, red ). · Card shape: view, bell, circle, shield, square, hex, heart, skew, rays, slow, time. - Zoom Card: 6 different size card options. - Just listening no watching: You can choose to play only the sound and not show the card content. - Find Words: Words with 145 patterns in 26 languages. - About us: You Can Find the Development team, Trademark, Privacy policy, Terms of use, How to contact us and "subscription management" link. - No Ads. - Support iPhone, iPad. * If you have suggestions or want to report a problem with the App, you are welcome to send a letter to: bugteams@gmail.com or welcome to our Fan page " B.U.G BUS https://reurl.cc/jdodqq ", we will reply you as soon as we receive the letter. * Privacy Policy:https://reurl.cc/xDMOke

Screenshots

Spirolaterals4 screens
BugPlanetEra4 screens

Verdict

The call

The clearest difference is iOS requirement: Spirolaterals at 11.0 against BugPlanetEra's 13.0. On price, update cadence, ads and in-app purchases 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.

UpkeepUpdate frequency

Spirolaterals ships an update every 6 months, BugPlanetEra every 5 months. The most recent releases landed on October 26, 2026 and October 11, 2026 respectively.

Scorecard1 real difference · 5 level
Spirolaterals versus BugPlanetEra: the parameters behind the verdict, then further details
ParameterSpirolateralsBugPlanetEra
PriceFreeFree
Update frequencyEvery 6 monthsEvery 5 months — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 — better13.0
Further details — not scored
Size4 MB2 MB
Age rating4+4+
DeveloperDaniel EthierKhan Kao

In-app purchases

None

Spirolaterals

No in-app purchases

None

BugPlanetEra

No in-app purchases

Questions

Is Spirolaterals free?
Spirolaterals is free to download, with no in-app purchases.
Is BugPlanetEra free?
BugPlanetEra is free to download, with no in-app purchases.
Do Spirolaterals or BugPlanetEra have ads?
Neither Spirolaterals nor BugPlanetEra shows ads.
Which is updated more often, Spirolaterals or BugPlanetEra?
Spirolaterals ships an update every 6 months, and BugPlanetEra every 5 months. Most recently, Spirolaterals was updated on October 26, 2026 and BugPlanetEra on October 11, 2026.

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