Comparison

Sai vs mySongDiary

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

Head to head
About

Sai

Features
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Drained by complicated relationships, workplace tension, or recurring arguments? Sai is an AI Relationship Stress Diary and Mood, Attachment & Trigger Tracker designed to help you log emotions per person, spot interpersonal patterns, and practice gentle self-care. Add the people who shape your day—your partner, spouse, friends, family members, or coworkers. Because the exact same day feels completely different depending on who you interacted with, Sai organizes every mood check-in by relationship. ■ Who is Sai for? • Anyone looking for a private relationship stress diary to untangle couple conflicts, family boundaries, or coworker tension • People who want an attachment & trigger tracker to observe their defense mechanisms and emotional reactions across different bonds • Those who find long journaling exhausting and want a 3-second mood check-in for emotions, body tension, and coping responses • Users who love tracking their monthly emotional rhythm right from a Home Screen mood calendar widget ■ 3-Second Check-In per Person: Mood, Body Tension & Defense Mechanisms Tap your current mood, core emotions, physical tension level on an intuitive slider (such as chest tightness or restlessness), and 6 self-protective defense mechanisms. Keep a quick one-tap log, a one-line note, or a deep vent journal at your own pace. ■ Relationship Emotion Timeline & Trigger Graph View your mood history and emotional distance graph for each specific person. Easily see when you grew closer or drifted apart, and pinpoint the exact interactions that repeatedly drain your energy. ■ AI Relationship Report in Just 3 Entries Once you log 3 entries for a person, AI generates a structured relationship report—covering relationship score, supportive vs. draining interaction patterns, shifting emotional distance, and gentle daily care practices for healthier boundaries. ■ Me in Relationships: Pattern Analysis & Mind Talk Why do you shut down around one person yet over-explain to another? Explore how your defense mechanisms shift by person, get tailored self-care actions, start a context-aware AI Mind Talk, or reflect on relationship reading prompts. ■ Home Screen Monthly Mood Calendar Widget See your month in moods at a glance on your Home Screen. Tap the character calendar widget anytime to jump straight into your daily diary. ■ Free AI Credits — No Paid Subscriptions Required Sai never locks your self-reflection behind a paid subscription. Earn free AI credits every day through daily check-ins and optional short ads. Manage your account, languages, and credit history transparently with optional confirmation prompts. ※ Disclaimer Sai is a non-medical self-care and self-reflection tool for tracking personal notes and interpersonal patterns. AI-generated insights and reports are informational summaries based solely on user entries and do not constitute medical advice, psychological diagnosis, clinical therapy, or professional counseling. If you are experiencing a mental health crisis, please contact a qualified healthcare professional or local emergency support service.

About

mySongDiary

Features
Read full description

SongDiary is a private journal for music. Write long-form entries about specific songs — what they mean to you, when you first heard them, the memories they’re tied to. No star ratings. No comments. No followers. Just you and what the song made you feel. WRITE • Search any song in Spotify’s catalog, or pick one from your recently-played list • Long-form composition with auto-saving drafts, so nothing’s ever lost • Save songs for later when you’re not ready to write yet • Edit any entry whenever you want BACKDATE ANY MEMORY • Add an entry for today, last week, or twenty years ago • Three date precisions: a specific day, a specific month, or just the year • The diary groups your entries by date, with sections for Today, Yesterday, and every month and year before SEE A SONG’S HISTORY • Tap any song name in an entry to see every entry you’ve ever written about it • Watch the same song mean different things to you over time YOUR DIARY, YOURS ALONE • No social features. No public profile. Nothing shared without you choosing to. • Connect Spotify if you want, or just use search — Spotify isn’t required. • Cancel anytime. Delete your account from inside Settings; everything goes. DESIGNED FOR THE WRITING • Dark, premium iOS design built around the typography • Album-art-tinted hero region above the writing surface, so the song sets the mood • Native iOS date picker, haptic feedback, 30-second previews when Spotify provides them • Floating tab bar with iOS 26 Liquid Glass support PRIVATE BY DEFAULT • Your entries live encrypted in transit on our infrastructure (Supabase). They’re scoped to your account and can’t be read by anyone else. • We don’t sell your data, share it with advertisers, or use it to train models. • Full privacy policy in Settings. Built for people who treat music as autobiography.

Screenshots

Sai4 screens
mySongDiary3 screens

Verdict

The call

The clearest difference is ads: mySongDiary at none against Sai's shown. Sai's advantage is update cadence (every 5 days vs fortnightly). 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.

UpkeepUpdate frequency

Sai ships an update every 5 days, mySongDiary fortnightly. The most recent releases landed on November 10, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 4 level
Sai versus mySongDiary: the parameters behind the verdict, then further details
ParameterSaimySongDiary
PriceFreeFree
Update frequencyEvery 5 days — betterFortnightly
AdsYesNo — better
In-app purchasesNoNo
DevicesiPhone, iPod — betteriPhone
Requires iOS15.0 — better16.4
Further details — not scored
Size64 MB57 MB
Age rating12+4+
DeveloperHyunJun MoonMichael Schiano

In-app purchases

None

Sai

No in-app purchases

None

mySongDiary

No in-app purchases

Questions

Is Sai free?
Sai is free to download, with no in-app purchases.
Is mySongDiary free?
mySongDiary is free to download, with no in-app purchases.
Do Sai or mySongDiary have ads?
Sai shows ads; mySongDiary does not.
Which is updated more often, Sai or mySongDiary?
Sai ships an update every 5 days, and mySongDiary fortnightly. Most recently, Sai was updated on November 10, 2026 and mySongDiary on October 31, 2026.

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