Comparison

HOLLY vs Serendipity Planner

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

Head to head
About

HOLLY

Features
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HOLLY(ホリー)の公式アプリです。 【概要】 ■アプリ上から24時間いつでも予約が可能 指名予約にも対応しているので担当スタッフのスケジュールを確認してからの予約が可能です。 ■クーポン お得なクーポンが配信されます。ネット予約時にクーポン利用での予約も可能なので来店時もスムーズに施術頂けます。 ■スタッフが施術したギャラリーを掲載 前もって画像を確認しておけばスムーズなオーダーが可能です。 ■マイページ機能 予約状況の確認やキャンセルがマイページ上から行えます。スタッフの登録が出来るので前もって担当者を登録しておけばマイページからスムーズな指名予約が可能です。

About

Serendipity Planner

Features
Read full description

Thirty minutes between two meetings. It usually disappears before you decide what to do with it. Serendipity Planner looks at your calendar, finds the gaps, and suggests a way to spend them. ■ Finds the gaps for you It reads your calendar and tells you where today has room. You don't have to go looking. ■ Picks by weather and place Outside when it's clear, indoors when it isn't. It points you to a café, a park or a bookshop near where you already are. ■ Set where you're headed Going somewhere today? Name the place, and suggestions come from around there instead. You arrive knowing what's nearby. ■ It learns as you go The app remembers what you pick and gradually leans toward what you like. ■ A widget for the next gap Your next free window, and an idea for it, on your home screen. Languages: Japanese, English, Korean, Spanish, French Your calendar is read only to find free time. The contents of your events never leave your device.

Screenshots

HOLLY2 screens
Serendipity Planner4 screens

Verdict

The call

The clearest difference is update cadence: Serendipity Planner at every 3 weeks against HOLLY's every 41 months. HOLLY's advantage is iOS requirement (8.0 vs 15.0). On price, ads, 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

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

HOLLY ships an update every 41 months, Serendipity Planner every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

Scorecard2 real differences · 4 level
HOLLY versus Serendipity Planner: the parameters behind the verdict, then further details
ParameterHOLLYSerendipity Planner
PriceFreeFree
Update frequencyEvery 41 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPodiPhone, iPad, iPod — better
Requires iOS8.0 — better15.0
Further details — not scored
Size4 MB5 MB
Age rating4+4+
Developeryoshinori masumuraKen Miyamura

In-app purchases

None

HOLLY

No in-app purchases

None

Serendipity Planner

No in-app purchases

Questions

Is HOLLY free?
HOLLY is free to download, with no in-app purchases.
Is Serendipity Planner free?
Serendipity Planner is free to download, with no in-app purchases.
Do HOLLY or Serendipity Planner have ads?
Neither HOLLY nor Serendipity Planner shows ads.
Which is updated more often, HOLLY or Serendipity Planner?
HOLLY ships an update every 41 months, and Serendipity Planner every 3 weeks. Most recently, HOLLY was updated on October 25, 2026 and Serendipity Planner on October 24, 2026.

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