InversionLetter vs LIVE Sidestage
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
InversionLetter
This app allows users to invert and rotate text messages, then send them as images via email. It offers options to change characters, tilt, and invert text, with various font choices.
- Invert characters
- Rotate text
- Send as image via email
- Change characters
- Tilt and invert options
- Font selection
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You can invert the entered characters , and can rotate. You can send by e-mail as an image . [ Operation ] Q: I want to change the previously entered characters A: Select the character you want change, you can change at each button . ( Tilt and inversion , fonts can be changed )
LIVE Sidestage
Enhance your live streaming with real-time comment voice reading and sound effects triggered by gifts. Review viewer contributions and gift history after your stream to understand your audience better.
- Real-time comment voice reading
- Gift-triggered sound effects
- Contribution history
- Gift history review
- Battle history review
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LIVE Sidestageは、TikTok LIVEのコメント読み上げ、ギフトに連動したサウンド再生、配信データの記録・振り返りができる配信支援アプリです。 【主な機能】 ・コメントをリアルタイムで音声読み上げ ・ギフトに合わせて効果音や音楽を再生 ・貢献者履歴の確認 ・ギフト履歴の確認 ・バトル履歴の確認 コメント読み上げやギフトサウンドで配信を盛り上げながら、配信後には貢献者やギフト、バトルの履歴を振り返ることができます。 【PROプラン(自動更新サブスクリプション)】 月額1,280円で、ランダムボイス、読み上げ速度の調整、全読み上げ音声の選択、効果音の無制限登録、週・月・年・カスタム範囲での履歴表示、リスナー名での検索・絞り込み、バトル履歴の貢献者全件表示がご利用いただけます。解約しない限り期間終了の24時間前に自動更新されます。解約はApp Storeのアカウント設定から行えます。 利用規約: https://livesidestage.com/legal/terms/live-sidestage プライバシーポリシー: https://livesidestage.com/legal/privacy/live-sidestage-mobile
Screenshots
Verdict
The clearest difference is review sentiment: LIVE Sidestage at 57% against InversionLetter's 15%. LIVE Sidestage also leads on ads (none vs shown) and update cadence (every 2 days vs every 17 months). InversionLetter's advantage is monetization model (ad-supported vs freemium) and iOS requirement (10.3 vs 15.0). On price, in-app purchases and device support 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
InversionLetter ships an update every 17 months, LIVE Sidestage every 2 days. The most recent releases landed on October 13, 2026 and October 8, 2026 respectively.
| Parameter | InversionLetter | LIVE Sidestage |
|---|---|---|
| Price | Free | Free |
| Rating | 1.0 (1 ratings) — better | — |
| Positive reviews | 15.0% of reviews | 57.1% of reviews — better |
| Number of ratings | 1 — better | — |
| Update frequency | Every 17 months | Every 2 days — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported — better | Freemium |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 10.3 — better | 15.0 |
| Further details — not scored | ||
| Size | 26 MB | 260 MB |
| Age rating | 4+ | 4+ |
| Developer | EIICHI KOMINE | SHINICHIRO ONO |
Customer experience
InversionLetter
LIVE Sidestage
In-app purchases
InversionLetter
No in-app purchases
LIVE Sidestage
No in-app purchases
