Comparison

SQL Recipes vs RDB情報

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

Head to head
About

SQL Recipes

Learn and reference SQL with over 200 queries and explanations covering various SQL standards and dialects. Practice on a sample database, edit queries, and add your own. The full version unlocks all features with a one-time purchase.

Highlights
  • 200+ SQL queries with explanations
  • Keyword and function reference
  • Dialect comparison (MySQL, PostgreSQL, etc.)
  • Practice database with runnable queries
  • Edit and save custom queries
  • Offline access (except query execution)
Features
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200+ SQL queries with explanations, 120+ of them free. Tap Run and see the result table right in the app. An everyday SQL cheat sheet, from your first SELECT to window functions. • 39 sections, including filtering, sorting, calculated fields, functions, GROUP BY, window functions, subqueries, JOIN, UNION, INSERT and UPDATE, data types, tables, views. • Changes by standard: 7 sections from SQL-92 to SQL:2023, with before-and-after queries. • Keyword and function reference: over 180 articles. Browse, search, or tap a word in a query to open its article. • Dialects compared: MySQL, PostgreSQL, SQLite, SQL Server, Oracle, Firebird, Access. Where they differ, the dialect-specific variants are shown. • Practice database: the classic MySQL “world” sample (countries, cities, spoken languages); its tables are described in the app. • Run in the app: more than half of the queries execute against the practice database, and the result table appears directly below the query. Requires an internet connection. • Search covers the queries themselves, not just titles: type a fragment you remember and find the query. • Edit queries and rerun the runnable ones; one tap brings the original back. • Add your own queries; they are saved in the app. • Everything except running queries works offline. No account needed. Queries are curated from professional sources and checked before release: the code works and is easy to follow. FREE VERSION • 12 runs and 12 edits a day • Full keyword and function reference; tap a word in a query for up to 12 articles a day • Up to 5 queries of your own The full version unlocks every query, removes the limits on edits and on your own queries, and raises the daily run limit to 80. One-time purchase, no subscription. Built by a developer for developers. The CodePro project has been in active development since 2015.

About

RDB情報

Features
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RDB(リレーショナルデータベース)にクエリ(問い合わせ)を行い、結果を返します。 SQLiteのDBを取り込み情報を表示します。 取り込んだSQL文を修正して実行できます。

Screenshots

SQL Recipes4 screens
RDB情報3 screens

Verdict

The call

The clearest difference is in-app purchases: RDB情報 at none against SQL Recipes's 3. SQL Recipes's advantage is ads (none vs shown) and device support (3 vs 1). On price and update cadence 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. SQL Recipes sells 3 one-off in-app purchases. RDB情報 asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on November 8, 2026 and November 7, 2026 respectively.

Scorecard4 real differences · 6 level
SQL Recipes versus RDB情報: the parameters behind the verdict, then further details
ParameterSQL RecipesRDB情報
PriceFreeFree
Rating4.9 (109 ratings) — better—
Positive reviews91.2% of reviews—
Number of ratings109 — better—
Update frequencyEvery 2 monthsEvery 2 months
AdsNo — betterYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPad, Mac — betteriPhone
Requires iOS17.0 — better26.5
Further details — not scored
Size6 MB10 MB
Age rating4+4+
DeveloperFedor ObraztsovKAZUTOSHI KINOSHITA

In-app purchases

3 purchases

SQL Recipes

One-time3
  • Оperations with example$0.99
  • Unlock the paid topics$0.99
  • Pro Version – Unlimited$1.99
None

RDB情報

No in-app purchases

Questions

Is SQL Recipes free?
SQL Recipes is free to download, with in-app purchases available.
Is RDB情報 free?
RDB情報 is free to download, with no in-app purchases.
Do SQL Recipes or RDB情報 have ads?
RDB情報 shows ads; SQL Recipes does not.
Which is updated more often, SQL Recipes or RDB情報?
SQL Recipes ships an update every 2 months, and RDB情報 every 2 months. Most recently, SQL Recipes was updated on November 8, 2026 and RDB情報 on November 7, 2026.

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