Think Songs

Think Songs

歌詞をぴったり同期・ふりがな付き

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Released
July 4, 2026
Updated
October 30, 2026

Features

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About

Lyrics in perfect sync — any song, any device. The lyrics fill in with the music one character at a time: not just at the start of each line, but right on the character being sung. Even when the words are hard to catch by ear, you can see what is being sung. Perfect sync is what Think Songs cares about above all. ■ Perfect sync, above all ・Timings for every character, down to 1/100 of a second ・Long tones keep filling as they are held, and staccato stops the fill between notes (each character can carry both where the singing starts and where it ends) ・The sync offset is remembered for each output — wired, Bluetooth, AirPlay, car audio — so switching devices does not mean adjusting again ・Sync Calibration lines the lyrics up with your setup before you start ■ Show over other apps Put the lyrics in a small window that floats over your other apps. While you reply to a message or look something up, the lyrics keep filling in, in perfect sync with the music. ・Show 2 to 4 lines ・During a long intro or interlude, the next line to be sung appears early, so you can read it before the singing starts ■ Furigana, so anyone can read along Kanji carry furigana, and the furigana fill in character by character too, so you can follow where the song is even over kanji you cannot read. ■ Harmony and unison, at a glance When several people sing, colour shows who sings what. Unison blends the part colours into one; harmony colours the characters in upper and lower bands. ■ Make your own Listen to the songs you already have and stamp timings as you go — character by character, or line by line. Automatic furigana, detection of timings that run backwards, and copying a chorus you have already timed take the tedium out of it. Finished lyrics can be shared on think-songs.com. ■ For people learning Japanese Romaji can be shown too. Tap a word in the lyrics for its English meaning from the bundled Japanese-English dictionary, with an example sentence for many words (works offline). ■ Also ・Works with songs in your device's music library ・Lines wrap at phrase boundaries, never in the middle of a meaning ・Choose the typeface, background, text size and how the lyrics scroll ・Soften the vocals or change the key (unprotected audio only) ・Reads and writes LRC and ALRC files The bundled Japanese-English dictionary is derived from EDICT2 by the Electronic Dictionary Research and Development Group (EDRDG), used under CC BY-SA 4.0. Example sentences come from the Tanaka Corpus maintained by the Tatoeba Project, used under CC BY 2.0 FR. Attribution is shown in Settings > About. JASRAC License No. 9042382001Y38026 NexTone License ID000012436 ■ Think Songs Premium (auto-renewable subscription) ・Two monthly plans: Premium, and Diamond for those who want to support development. The features are the same; only the amount differs ・Subscribers see the lyrics of every JASRAC- and NexTone-licensed song in full (without a subscription, up to 3 a day are shown in full) ・Payment is charged to your Apple ID at confirmation of purchase. The subscription renews automatically unless auto-renew is turned off at least 24 hours before the end of the current period. Manage or cancel it in Settings > Apple ID > Subscriptions Terms of Use (EULA): https://think-songs.com/terms Privacy Policy: https://think-songs.com/privacy
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What's New in Think Songs

1.1.4

October 30, 2026

Lyric timing is more accurate in this update. ■ Seeking over Bluetooth With Bluetooth earphones or similar devices, lyrics for Apple Music songs could run ahead after a seek, then jump back a few seconds later. This is fixed, both when connected to the Music app and when playing from your Library. The app measures how far ahead they run on each device and remembers it, so later seeks line up better. ■ Returning from the Music app When you played a song in the Music app and came back, or when the song changed, lyrics could stay slightly late until your next seek. This is fixed, and so is the offset when you start playback in the Music app. ■ New default sync offsets Defaults have changed for new installs and for output types you haven't used before. Saved values stay as they are, but devices with no saved music-app value get the new default. • Display (synced to a music app): Wired / Built-in −200 ms, Bluetooth and CarPlay 0 ms • Display (playing in this app): CarPlay −200 ms, the same as Bluetooth "Restore Defaults" now returns to the default for the current output. ■ Other fixes • After seeking past several lines, the furigana or romaji alone could keep its old color. While connected to the Music app, lines without furigana were affected too. • The permission message for accessing your music library now appears in English and Chinese.

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