Comparison

LookUpList vs Thesaurus S

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

Head to head
About

LookUpList

Build your personalized dictionary and word lists by searching across your favorite websites. Save words instantly and look them up from any app. Supports custom websites and iOS built-in dictionaries.

Highlights
  • Cross-site word searching
  • Save words to custom lists
  • Look up words from other apps
  • Add any searchable website
  • Create multiple word lists
  • Import/export word lists (CSV)
Features
Read full description

LookUpList is an app that lets you build your own dictionary and word lists. Just enter a word or phrase and tap the “Search” button — it instantly looks it up across your favorite websites. The app performs a cross-site search using all the websites you’ve added to the tab bar, so you can easily compare results side by side. You can also save looked-up words to your word lists with a single tap. It’s perfect for language learners! Even better, you can look up words from within other apps — no need to switch back and forth. This is especially useful when reading articles in news or ebook apps. You’re not limited to online dictionaries — any website with a search function can be added. Create a custom dictionary that fits your needs! "Look Up" - Look up words and phrases instantly by tapping the “Search” button. - Cross-search all added websites to easily compare their results. - Switch between websites by swiping — one-handed use is easy. - Add any website with search capability. - Save words and phrases to your word lists with just one tap. - Look up words from other apps using the Share Extension — no app switching needed. - Supports iOS built-in dictionaries as well. - Add custom website tabs using URLs with query strings (for advanced users). "Word List" - Each word includes a checkmark, favorite button, and note field. - One-tap web search from your word list. - Sort words alphabetically or by creation date. - Create multiple word lists. - Easily import and export your word lists in CSV format. Please leave a review on the App Store. If you have any questions, feel free to email us at: sup.lookuplist@gmail.com Thanks for your support!

About

Thesaurus S

This reference app helps users find synonyms for words, offering over 90,000 candidates. Its simple interface and voice input support make it easy to discover desired expressions and strengthen vocabulary.

Highlights
  • Extensive synonym database (90,000+)
  • Simple and intuitive interface
  • Voice input support
  • Helps find paraphrases
  • Aids vocabulary building
Features
Read full description

We have created a free "Thesaurus" that accurately classifies and displays words with the same concept as "input words" from more than 90,000 candidates. With "simple operability" that eliminates extra elements, you can select the next candidate from the list and arrive at the "desired expression". With voice input support, it is possible to easily find "appropriate words". Feel free to use the "Thesaurus", which is ideal for "people who want to find paraphrases of monotonous sentences", "people who can't think of good phrases or images", and "strengthening vocabulary".

Screenshots

LookUpList4 screens
Thesaurus S2 screens

Verdict

The call

The clearest difference is rating: LookUpList at 4.7 against Thesaurus S's 1.0. LookUpList also leads on ads (none vs shown) and review sentiment (83% vs 50%). Thesaurus S's advantage is update cadence (monthly vs every 2 months). On price, in-app purchases, device support and iOS requirement 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.

ReceptionRating · Positive reviews · Number of ratings

LookUpList holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: LookUpList has 26 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 83% of LookUpList's written reviews are positive against 50% of Thesaurus S's.

UpkeepUpdate frequency

LookUpList ships an update every 2 months, Thesaurus S monthly. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard6 real differences · 4 level
LookUpList versus Thesaurus S: the parameters behind the verdict, then further details
ParameterLookUpListThesaurus S
PriceFreeFree
Rating4.7 (26 ratings) — better1.0 (1 ratings)
Positive reviews82.8% of reviews — better50.0% of reviews
Number of ratings26 — better1
Update frequencyEvery 2 monthsMonthly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS14.0 — better15.0
Further details — not scored
Size14 MB63 MB
Age rating4+4+
DeveloperYohei NoguchiE-ONLINESERVICE

Customer experience

LookUpList

All ratings26 ratings
Positive96.2%
Neutral0.0%
Negative3.8%
Written reviews29 reviews
Positive82.8%
Neutral10.3%
Negative6.9%

Thesaurus S

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

None

LookUpList

No in-app purchases

None

Thesaurus S

No in-app purchases

Questions

Is LookUpList free?
LookUpList is free to download, with no in-app purchases.
Is Thesaurus S free?
Thesaurus S is free to download, with no in-app purchases.
Which has better reviews, LookUpList or Thesaurus S?
LookUpList is rated higher. LookUpList averages 4.7 out of 5 from 26 ratings, while Thesaurus S averages 1.0 from 1 ratings.
Do LookUpList or Thesaurus S have ads?
Thesaurus S shows ads; LookUpList does not.
Which is updated more often, LookUpList or Thesaurus S?
LookUpList ships an update every 2 months, and Thesaurus S monthly. Most recently, LookUpList was updated on November 2, 2026 and Thesaurus S on November 3, 2026.

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