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Finally! The first iPhone app that lets you track your Klaviyo campaigns live!

You are curious.
That's your job.

You work with the best email tool on the market. And right after the send, you want to know whether the campaign is working. Opens. Clicks. Revenue. Not eventually — now.

Start for free

For iPhone. No credit card, no expiry date.

Campaign KPI for Klaviyo
Man in his early thirties sitting in bed looking at his smartphone

Wherever you are

Everything in view — wherever you happen to be.

One of the best send times is Sunday morning. Breakfast in bed, one more roll-over, the coffee is still hot.

What you definitely do not want on a morning like that: booting the laptop, logging in, clicking through dashboards — just to see whether the campaign landed.

With Campaign KPI for Klaviyo, the answer is wherever your phone is.

The solution

Campaign KPI for Klaviyo.
Everything in view — from bed.

An iPhone app. Connect it to your Klaviyo account once, and your campaign metrics live in your pocket. No laptop. No login marathon.

  • Live after the send

    Opens, clicks, revenue and unsubscribes — as soon as the first data comes in.

  • As much campaign as you need

    Free shows your most recent campaign. Want more — several campaigns, trends, A/B results, multiple accounts — pick In-house or Agency.

  • Spot outliers immediately

    When a campaign deviates sharply — up or down — you see it first.

  • Read only, never write

    The app reads your metrics through the official Klaviyo API. It sends nothing and changes nothing.

New in In-house

The projection.

Are you also fascinated on election night when a forecast appears on screen the second the polls close — and by the end of the evening it turns out to be remarkably close?

You get exactly that head start for your campaigns. No waiting days for a result. A projection instead, and it gets sharper by the hour.

And because a forecast without context is worthless, we also tell you how much you can rely on it.

The projection is included in In-house and Agency.

The quality of the projection depends on your data. It is highest for lists above 50,000 recipients and for campaigns that stay comparable over time — similar send days and times, no sharp swings in list size.

  • From your own campaigns

    The projection learns from your past mailings — not from industry averages that have nothing to do with your list.

  • A range, not false precision

    Every value comes with a corridor. A single number without a range would be a lie.

  • With a confidence indicator

    A bar from red to green shows how solid the forecast currently is. Not enough data? We say so.

Plans

Pick the plan that fits you perfectly.

All plans use the same app. You can switch or cancel at any time.

Free

Freeforever

Permanently. No credit card, no expiry date.

  • Your most recent campaign — live
  • All key metrics at a glance
  • One Klaviyo account
  • Refreshed every 2 hours
Get it free on the App Store

In-house

For marketers looking after their own Klaviyo accounts.

only$0.99/ month

  • Swipe through your last 5 campaigns
  • Trend analysis: your key metrics over time
  • Up to 3 Klaviyo accounts
  • Refreshed every 15 minutes
Get it on the App Store

Looking after several Klaviyo accounts? See Agency

Free stays free permanently — no credit card, no expiry date. In-house and Agency are purchased as in-app purchases through the Apple App Store. You manage and cancel the subscription in your Apple ID settings, at any time and without notice periods.

All prices include VAT. Purchase and billing run through the Apple App Store.

Why this app exists

We built the app we were missing ourselves.

We are a Klaviyo Platinum Partner and home to the only Klaviyo Champion in the DACH region. This community has given us a lot. Campaign KPI for Klaviyo is what we give back — born out of our own need, not out of a gap on a slide.

  • Why is there a permanently free plan?

    Because seeing your own campaign should not be a privilege. Free shows your most recent campaign with all the key metrics — permanently, no credit card, no expiry date. If you need more campaigns, trends, the projection or several accounts, you move to In-house or Agency.

  • Am I committing to anything?

    No. There is no minimum term and no notice period. The subscription runs through your Apple ID, where you can cancel with two taps. We will ask you for feedback on the features and for what you would like to see next — answering is voluntary, but it helps us a great deal.

  • Why is the app so inexpensive?

    Because we do not want to make money on it. The prices cover operation, development and support. Our business is consulting, not software — this app is the tool we use ourselves every day.

Uwe-Michael Sinn on the phone on a terrace overlooking the water
“Hey Steven, that Fall Fashion campaign last week did really well. But there is something else I noticed …”

For agencies and consultants

How I keep client relationships warm — between two meetings.

I designed this app — with a close eye on what my clients need, and honestly on what I need myself. As one of the best-known email marketing consultants in the German-speaking market, I look after a great many Klaviyo clients. And I travel a lot.

As it goes on the road, I get a few spare minutes here and there — in a hotel, at an airport, on a terrace overlooking the water.

One of the secrets behind my client relationships: whenever I have a moment, I sit down, open Campaign KPI for Klaviyo and swipe through a client’s last campaigns. And then I call.

Sometimes that call takes five minutes, sometimes it turns into an hour of discussion. I am convinced that staying this close to my clients is one of the secrets of my success. Campaign KPI for Klaviyo helps me do it.

UweFounder of Meister Lampe

  • Up to 20 Klaviyo accounts only $12.99 / month
  • Unlimited Klaviyo accounts only $19.99 / month
Get it on the App Store

Who is behind this

Built by people with more than 25 years of email marketing know-how.

Campaign KPI for Klaviyo does not come from a startup that just discovered email. It comes from people who have worked this channel since it existed.

Logo Meister Lampe und Freunde

Meister Lampe und Freunde

Retention consultants for Klaviyo

We are not a classic agency. We set up Klaviyo accounts properly, build the strategy together with our clients and train their teams — until they can do it themselves.

Founded in 2017, today seven people who have done nothing but direct customer communication for years. For Reader’s Digest, POCO, WECK, mySpirits.eu, berge & meer, Torquato and more than 200 others.

  • Klaviyo Platinum Partner
  • Klaviyo Partner Advisory Council — one of only 30 members worldwide

meisterlampe.email ›

Uwe-Michael Sinn, founder of Meister Lampe und Freunde GmbH

Uwe-Michael Sinn

Developer of Campaign KPI for Klaviyo · Founder and managing team of Meister Lampe und Freunde GmbH

Klaviyo Champion 2026

The only Klaviyo Champion in the DACH region

Uwe has worked in email marketing since 1999. In 2000 he first founded a software company that built one of the earliest German email marketing tools, and shortly after that the first specialist email marketing agency in Germany.

Since 2017 he has advised and coached clients through his consulting firm Meister Lampe und Freunde, mainly in e-commerce and B2B lead generation. Klaviyo became his platform of choice — for its power, its unmatched ability to put data to work and, not least, how easy it is to use.

He is the only Klaviyo Champion in the DACH region and the author of the Amazon Business bestseller “Perfektes E-Mail-Marketing” (top 10), now in its second edition, focused on how AI is reshaping email marketing.

He had the idea for Campaign KPI for Klaviyo on a Sunday morning — when he once again had to boot the laptop to see how a campaign was doing.

LinkedInThe book

Campaign KPI for Klaviyo uses the official Klaviyo API with the least permissive scopes possible. The app reads campaign metrics only. It does not send emails and does not change any data in your account. Campaign KPI for Klaviyo is an independent product of Uwe-Michael Sinn and is not affiliated with Klaviyo, Inc.