Comparison

Bollinger 1829 vs Custos

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

Head to head
About

Bollinger 1829

Explore exclusive content and tailored experiences related to a renowned champagne house. Discover cellar tours, wine tastings, and behind-the-scenes stories from vineyard to bottle. Access rare vintages and connect with experts for purchasing advice and food pairings.

Highlights
  • Exclusive content access
  • Tailored year-round experiences
  • Virtual cellar tours
  • Wine tasting experiences
  • Behind-the-scenes stories
  • Access to rare vintages
  • Expert advice and purchasing guidance
Features
Read full description

Discover Champagne Bollinger in a new light through the 1829 app and gain access to exclusive content! Enjoy tailored experiences year-round, both in-person and online. Explore the tunnels of our cellar, taste our fine wines, and experience moments of excellence: just some of the ways to feel the true Bollinger spirit. Let the secrets of Champagne Bollinger carry you away. From vineyard to cellar, gain exclusive access to the daily life of the people behind Champagne Bollinger, their secrets and their stories. Open the doors to our oenotheque. Ever since 1829, it has been our pleasure to share our hard work on taste and on our terroir. You can see it in our collection of unique cuvées. You’ll be among the first to access our rare and exceptional vintages. Talk with Bollinger experts. Ask us about purchasing advice, food pairings, the history of our House, and much more. Our advisors are here to help and happy to assist. To access the app, you’ll need an 1829 code. Your code may have been handed to you. It may also be found in the case with some of our vintages.

About

Custos

Features
Read full description

One forgotten subscription at $12 a month is $144 a year that nobody decided to spend. It is almost never the price that catches you out — it is the date. Contracts renew on their own, and the notice period expires weeks before the charge. By the time the line shows up on your statement, it is already too late. Custos watches that date. Not the payment date — the one before it, the only one you can still act on. Free, no account, no ads. YOUR SUBSCRIPTIONS ARE NOBODY ELSE'S BUSINESS Custos has no server. Your data stays on your devices and, if you turn syncing on, in your private iCloud space — which we cannot access. The app's only network traffic goes to Apple's own services. WHAT CUSTOS DOES • Warns you on the right day — The cancellation deadline, worked out from the notice period and the next payment. A notification on the exact day, plus calendar reminders at 1 month, 15 days, 7 days, 1 day and the day itself. • Tells you what it all costs — Adjusted monthly and yearly cost, whatever the billing cycle, and a breakdown by category. • Spots free trials — "Free until…" while the first payment is still ahead. A trial never inflates your monthly cost, but it does trigger the alert: that is where it has to stop you. • Writes the letter for you — Email or registered letter, ready to copy, with your details already filled in. • Keeps the proof — Date sent, channel, reference, acknowledgement. Something to point to if you get charged anyway. • Catches silent price rises — Three dollars more goes unnoticed; Custos works out what it costs over a year. • Reads your bank statement — Drop in a CSV or OFX file: Custos spots the recurring debits and suggests the subscriptions behind them. The file is read on your device, with no connection to your bank, and nothing is saved until you confirm. • Shows what is about to leave your account — This month's outgoings, split by account, and a day-by-day schedule. • Knows who pays for what — Bank accounts and subscribers, for a household or a small team. • Explains it all — Twelve illustrated chapters inside the app, on Custos and on cancellation notice periods. • Lets you leave — CSV export and a full backup, whenever you want. ON IPHONE, IPAD AND APPLE WATCH • Home Screen widgets in three sizes, and Lock Screen widgets. • Live Activity — The countdown to your next deadline on the Lock Screen and in the Dynamic Island. • Apple Watch — The watch app and its "Cancellation deadline" complication. • Siri and Shortcuts — Ask out loud for your deadlines over the next 30 days. • On iPad — The list and the details side by side, with the handbook in the left column. • Full Dark Mode, Dynamic Type and VoiceOver. • Optional iCloud sync with the Mac. Install Custos, enter your subscriptions once, and let it watch the dates for you.

Screenshots

Bollinger 18294 screens
Custos4 screens

Verdict

The call

The clearest difference is update cadence: Custos at every 3 weeks against Bollinger 1829's every 2 months. Custos also leads on device support (4 vs 1). Bollinger 1829's advantage is iOS requirement (16.0 vs 26.0). On price, ads and in-app purchases 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

Bollinger 1829 ships an update every 2 months, Custos every 3 weeks. The most recent releases landed on September 25, 2026 and October 6, 2026 respectively.

Scorecard3 real differences · 7 level
Bollinger 1829 versus Custos: the parameters behind the verdict, then further details
ParameterBollinger 1829Custos
PriceFreeFree
Rating2.6 (5 ratings) — better—
Positive reviews33.3% of reviews—
Number of ratings5 — better—
Update frequencyEvery 2 monthsEvery 3 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhoneiPhone, iPad, Mac, Apple Watch — better
Requires iOS16.0 — better26.0
Further details — not scored
Size132 MB25 MB
Age rating17+4+
DeveloperChampagne BollingerHenri Dominique Rapin

In-app purchases

None

Bollinger 1829

No in-app purchases

None

Custos

No in-app purchases

Questions

Is Bollinger 1829 free?
Bollinger 1829 is free to download, with no in-app purchases.
Is Custos free?
Custos is free to download, with no in-app purchases.
Do Bollinger 1829 or Custos have ads?
Neither Bollinger 1829 nor Custos shows ads.
Which is updated more often, Bollinger 1829 or Custos?
Bollinger 1829 ships an update every 2 months, and Custos every 3 weeks. Most recently, Bollinger 1829 was updated on September 25, 2026 and Custos on October 6, 2026.

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