33. Howbout – a shared calendar that’s keeping Gen Z connected Howbout is the ultimate shared calendar, designed to help Gen Z finally take their plans out of the group chat. About the Startups 100 Now in its 17th year, the Startups 100 is the definitive list of the most promising new UK businesses. There's no fee for entry or for inclusion in our index. The Startups team of new business experts judge all our top 100 entrants in collaboration with specialist industry consultants. See our guide to this year’s hottest new businesses and most exceptional founders in the complete 2025 Startups 100 index. Founders: Neil Tanna, Jake Jenner, and Duncan Cowan Year founded: 2019Website: howbout.appThere are plenty of myths about ageing. One adage that isn’t false? The older you get, the harder it is to make plans. Coffee and a catch-up can take weeks to organise. And forget about that group holiday to Greece; it was doomed before you could spell ‘T-Z-A-T-Z-I-K-I’.Howbout isn’t here to fix the trappings of modern life. But it does want to make it easier for friendship groups to spend time together between work, fitness, hobbies, and downtime.It’s a basic idea; a shared calendar for mates to plug with their weekly plans. Within the app, you can see you and your friends’ schedules, share your availability, and create groups for easy planning with people you regularly hang out with.But Howbout doesn’t want to be just another digital diary. It views social media apps, like Snapchat and Instagram, as its competitors. Its USP? Unlike curated images and posed interactions, the platform keeps things grounded in real-life plans and shared experiences.It almost didn’t happen. Birthed just before the pandemic, Howbout’s launch was immediately curtailed by the start of lockdown — not great for an app for recording active lives. Like many businesses, however, Howbout pivoted by bringing in features like a video call link for staying social with friends over Zoom calls, and focusing marketing on making plans with friends when lockdown eased — tapping into a craving for IRL connection that has stuck around.“Gen Z are seeking more ways to feel more connected,” say the founders. “The ultimate friendship badge of honour is being included in more intimate circles to stay connected.”Howbout now has almost five million downloads in over 150 countries. By partnering with brands such as Tinder, and gaining the backing of YouTubers like The Sidemen, the app has built a loyal audience of young adults who are discovering how valuable their spare time is.Last August, Howbout closed an $8m Series A funding round, which its founders describe as their biggest achievement so far. Then, investor Goodwater Capital said: “Howbout has the potential to become the go-to calendar for an entire generation.” Howbout that? The 2025 Startups 100 List in Full 1 Lottie 2 Robin AI 3 Yonder 4 HIVED 5 Gaia 6 Runna 7 Quantum Dice 8 Hoxton Farms 9 MAGIC AI 10 Eolas Medical 11 DRIFT Energy 12 Audiomob 13 Lindus Health 14 FYLD 15 Zero Gravity 16 Vikela 17 ToffeeX 18 Bio&Me 19 Strolll 20 Triple Technologies 21 UNDO Carbon 22 KOMI 23 Untap 24 Novai 25 Omni Pet 26 Sona 27 Fin Sustainable Logistics 28 trumpet 29 Swiipr Technologies 30 Cerbos 31 By Rotation 32 Open Climate Fix 33 Howbout 34 cheqd 35 Seep 36 Oort Energy 37 Walking on Earth 38 Flexa 39 HutanBio 40 Primer 41 Black Seed Ventures 42 Sharesy 43 Made With Intent 44 Userled 45 Zeti 46 Luna Daily 47 Deploy Tech 48 PulpaTronics 49 Metris Energy 50 VoltShare 51 NOQ Group 52 Hormona 53 Unify AI 54 The Seam 55 Siloton 56 SURREAL 57 Valarian Technologies 58 Papaya Technologies 59 PEEQUAL 60 PlantSea 61 Bloom Money 62 Tonic Health 63 Stored. 64 Cult Mia 65 Atlantic Money 66 facia.ai 67 RideTandem 68 Monk 69 STOCKED 70 IMPOSSIBREW 71 Mindgard 72 Grub Club Pets 73 Financielle 74 Outverse 75 Automated Architecture 76 Freja 77 Purple Transform 78 Lumi 79 Storekit 80 Unfabled 81 Asan Wellness 82 Mach42 83 seedata.io 84 Peachies 85 Nugget Savings 86 Enbiosis Biotechnology 87 Swoperz 88 growze 89 ekko 90 Tunic Pay 91 SKIN 92 Cashblack 93 TaskHer 94 XR Therapeutics 95 Alyve 96 UJJI AI 97 Volunteero 98 SuperFi 99 PharmAppy 100 Cogs AI See more Share this post facebook twitter linkedin Tags 2025