Comparison

s vs Relationship Tracker

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

Head to head
About

s

Features
Read full description

Manage s-Flow smart electronic devices by using this app. You will be able to set up your own parameters and start the smart functions of the shower: Warm-up & Alarm: Preheats the shower by flushing out cold water from the pipes until the desired pre-set temperature is reached. Perfect for your morning daily shower. Child safe shower: Set up water temperature, flow rate and water outlet desired for child shower. My sequence: Set up and run water sequences combining temperatures, flow rates, alternative water outlets and time. Bath fill mode: Fill up your bathtub at the desired temperature using the cold water of hot pipes at the beginning to avoid waste of water during the fill. It automatically stops when the water volume reaches the pre-set volume. There are maintenance functions available too: Anti-legionella: The system performs thermal disinfection in all shower outlets. OEM thermal disinfection programs can be set by the manufacturer. Cleaning: Water hammer through all outlets to avoid accumulation of lime and impurities. The app allows you to set up the shower and store function preferences up to 3 user profiles. You can also see water and energy consumption statistics, historical of alarms and data and general settings of the shower.

About

Relationship Tracker

This app helps you stay connected with important people by providing personalized reminders to reach out. Track your connection streaks, celebrate milestones, and add personal notes to nurture your relationships.

Highlights
  • Contact organization into circles
  • Customizable connection frequencies
  • Personalized outreach reminders
  • Connection streak tracking
  • Relationship milestone celebration
  • Personal notes for contacts
  • Avatar companion
Features
Read full description

Your Personal Relationship Companion Foster is your thoughtful friend who helps you stay connected with the people who matter most. With a charming avatar companion by your side, maintaining relationships becomes joyful instead of overwhelming. How Foster Works: Import your contacts and organize them into relationship circles Set connection frequencies (weekly for family, monthly for friends, yearly for colleagues) Receive gentle, personalized reminders when it's time to reach out Track your connection streaks and celebrate relationship milestones Add personal notes so you never forget important details about each person Perfect For: Busy professionals juggling work and personal life People with ADHD who struggle with relationship maintenance Anyone with social anxiety around reaching out to others Those who want to be more intentional about their relationships People who've lost touch and want to reconnect meaningfully Why You'll Love Foster: Friendly, Not Clinical - Your avatar companion makes relationship maintenance feel warm and supportive, not like a business task Beautifully Designed - Fun, engaging interface that you'll actually want to use daily Smart Reminders - Gentle nudges that feel helpful, never nagging or guilt-inducing Motivation That Works - Visual progress tracking and streak celebrations keep you engaged Personal Touch - Remember birthdays, interests, and important life events for each person Mental Load Relief - Stop trying to remember everything - let Foster handle the scheduling while you focus on connecting Foster transforms "I should really text them" thoughts into meaningful connections. Be the friend you want to be, without the stress of trying to remember everyone on your own.

Screenshots

s4 screens
Relationship Tracker4 screens

Verdict

The call

The clearest difference is in-app purchases: s at none against Relationship Tracker's 4. Relationship Tracker's advantage is update cadence (every 4 weeks vs every 9 months) and device support (3 vs 1). On price and ads 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. Relationship Tracker sells 4 in-app purchases, starting at $2.99 per month. s asks for nothing beyond the download.

UpkeepUpdate frequency

s ships an update every 9 months, Relationship Tracker every 4 weeks. The most recent releases landed on September 10, 2026 and September 17, 2026 respectively.

Scorecard4 real differences · 5 level
s versus Relationship Tracker: the parameters behind the verdict, then further details
ParametersRelationship Tracker
PriceFreeFree
Rating—5.0 (1 ratings) — better
Number of ratings—1 — better
Update frequencyEvery 9 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS18.215.1 — better
Further details — not scored
Size71 MB72 MB
Age rating4+4+
DeveloperSedal Digital Systems SLCarbon Studio LLC (Apps)

In-app purchases

None

s

No in-app purchases

4 purchases

Relationship Tracker

Subscriptions4
  • Foster Thrive Monthly$2.991 Month
  • Foster Unlimited Monthly$4.991 Month
  • Foster Thrive Annual$24.991 Year
Show 1 more
  • Foster Unlimited Annual$49.991 Year

Questions

Is s free?
s is free to download, with no in-app purchases.
Is Relationship Tracker free?
Relationship Tracker is free to download, with in-app purchases available.
Do s or Relationship Tracker have ads?
Neither s nor Relationship Tracker shows ads.
Which is updated more often, s or Relationship Tracker?
s ships an update every 9 months, and Relationship Tracker every 4 weeks. Most recently, s was updated on September 10, 2026 and Relationship Tracker on September 17, 2026.

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