diff --git a/src/api/gramjs/methods/payments.ts b/src/api/gramjs/methods/payments.ts
index da87e75a9..07c283f54 100644
--- a/src/api/gramjs/methods/payments.ts
+++ b/src/api/gramjs/methods/payments.ts
@@ -212,19 +212,32 @@ export async function fetchMyBoosts() {
   };
 }
 
-export function applyBoost({
+export async function applyBoost({
   chat,
   slots,
 } : {
   chat: ApiChat;
   slots: number[];
 }) {
-  return invokeRequest(new GramJs.premium.ApplyBoost({
+  const result = await invokeRequest(new GramJs.premium.ApplyBoost({
     peer: buildInputPeer(chat.id, chat.accessHash),
     slots,
-  }), {
-    shouldReturnTrue: true,
-  });
+  }));
+
+  if (!result) return undefined;
+
+  addEntitiesToLocalDb(result.users);
+  addEntitiesToLocalDb(result.chats);
+
+  const users = result.users.map(buildApiUser).filter(Boolean);
+  const chats = result.chats.map((c) => buildApiChatFromPreview(c)).filter(Boolean);
+  const boosts = result.myBoosts.map(buildApiMyBoost);
+
+  return {
+    users,
+    chats,
+    boosts,
+  };
 }
 
 export async function fetchBoostsStatus({
diff --git a/src/components/common/helpers/boostInfo.ts b/src/components/common/helpers/boostInfo.ts
index 380b150c0..466078074 100644
--- a/src/components/common/helpers/boostInfo.ts
+++ b/src/components/common/helpers/boostInfo.ts
@@ -5,11 +5,11 @@ export function getBoostProgressInfo(boostInfo: ApiBoostsStatus, freezeOnLevelUp
     level, boosts, currentLevelBoosts, nextLevelBoosts, hasMyBoost,
   } = boostInfo;
 
-  const currentLevel = level;
-  const hasNextLevel = Boolean(nextLevelBoosts);
-
   const isJustUpgraded = freezeOnLevelUp && boosts === currentLevelBoosts && hasMyBoost;
 
+  const currentLevel = isJustUpgraded ? level - 1 : level;
+  const hasNextLevel = Boolean(nextLevelBoosts);
+
   const levelProgress = (!nextLevelBoosts || isJustUpgraded) ? 1
     : (boosts - currentLevelBoosts) / (nextLevelBoosts - currentLevelBoosts);
   const remainingBoosts = nextLevelBoosts ? nextLevelBoosts - boosts : 0;
diff --git a/src/components/modals/boost/BoostModal.tsx b/src/components/modals/boost/BoostModal.tsx
index 915615f48..1bd898828 100644
--- a/src/components/modals/boost/BoostModal.tsx
+++ b/src/components/modals/boost/BoostModal.tsx
@@ -33,6 +33,7 @@ type LoadedParams = {
   progress: number;
   descriptionText: string;
   isBoosted?: boolean;
+  canBoostMore?: boolean;
 };
 
 type BoostInfo = ({
@@ -100,6 +101,7 @@ const BoostModal = ({
     value,
     progress,
     descriptionText,
+    canBoostMore,
   }: BoostInfo = useMemo(() => {
     if (!info?.boostStatus || !chat) {
       return {
@@ -112,7 +114,8 @@ const BoostModal = ({
       level, currentLevelBoosts, hasMyBoost,
     } = info.boostStatus;
 
-    const firstBoost = info?.myBoosts && getFirstAvailableBoost(info.myBoosts);
+    const firstBoost = info?.myBoosts && getFirstAvailableBoost(info.myBoosts, chat.id);
+    const areBoostsInDifferentChannels = info?.myBoosts && !areAllBoostsInChannel(info.myBoosts, chat.id);
 
     const {
       boosts,
@@ -163,10 +166,11 @@ const BoostModal = ({
       descriptionText: description,
       boost: firstBoost,
       isBoosted: hasBoost,
+      canBoostMore: areBoostsInDifferentChannels,
     };
   }, [chat, chatTitle, info, lang]);
 
-  const isBoostDisabled = !boost && isCurrentUserPremium;
+  const isBoostDisabled = !info?.myBoosts?.length && isCurrentUserPremium;
   const isReplacingBoost = boost?.chatId && boost.chatId !== info?.chatId;
 
   const handleApplyBoost = useLastCallback(() => {
@@ -187,10 +191,11 @@ const BoostModal = ({
         openPremiumDialog();
       }
 
+      closeBoostModal();
       return;
     }
 
-    if (isBoosted) {
+    if (!canBoostMore) {
       closeBoostModal();
       return;
     }
@@ -231,10 +236,10 @@ const BoostModal = ({
         </div>
         <div className="dialog-buttons">
           <Button isText className="confirm-dialog-button" disabled={isBoostDisabled} onClick={handleButtonClick}>
-            {!isBoosted ? (
+            {canBoostMore ? (
               <>
                 <Icon name="boost" />
-                {lang('ChannelBoost.BoostChannel')}
+                {lang(isBoosted && canBoostMore ? 'BoostingBoostAgain' : 'ChannelBoost.BoostChannel')}
               </>
             ) : lang('OK')}
           </Button>
@@ -316,14 +321,20 @@ const BoostModal = ({
   );
 };
 
-function getFirstAvailableBoost(myBoosts: ApiMyBoost[]) {
-  return myBoosts.find((boost) => !boost.chatId) || myBoosts.sort((a, b) => a.date - b.date)[0];
+function getFirstAvailableBoost(myBoosts: ApiMyBoost[], chatId?: string) {
+  return myBoosts.find((boost) => !boost.chatId)
+    || myBoosts.filter((b) => chatId && b.chatId !== chatId)
+      .sort((a, b) => a.date - b.date)[0];
+}
+
+function areAllBoostsInChannel(myBoosts: ApiMyBoost[], chatId: string) {
+  return myBoosts.every((boost) => boost.chatId === chatId);
 }
 
 export default memo(withGlobal<OwnProps>(
   (global, { info }): StateProps => {
     const chat = info && selectChat(global, info?.chatId);
-    const firstBoost = info?.myBoosts && getFirstAvailableBoost(info.myBoosts);
+    const firstBoost = info?.myBoosts && getFirstAvailableBoost(info.myBoosts, info.chatId);
     const boostedChat = firstBoost?.chatId ? selectChat(global, firstBoost?.chatId) : undefined;
 
     return {
diff --git a/src/global/actions/api/payments.ts b/src/global/actions/api/payments.ts
index 204661eef..94dffe97f 100644
--- a/src/global/actions/api/payments.ts
+++ b/src/global/actions/api/payments.ts
@@ -611,6 +611,20 @@ addActionHandler('applyBoost', async (global, actions, payload): Promise<void> =
     return;
   }
 
+  global = getGlobal();
+  let tabState = selectTabState(global, tabId);
+  global = addUsers(global, buildCollectionByKey(result.users, 'id'));
+  global = addChats(global, buildCollectionByKey(result.chats, 'id'));
+  if (tabState.boostModal) {
+    global = updateTabState(global, {
+      boostModal: {
+        ...tabState.boostModal,
+        myBoosts: result.boosts,
+      },
+    }, tabId);
+  }
+  setGlobal(global);
+
   const newStatusResult = await callApi('fetchBoostsStatus', {
     chat,
   });
@@ -620,7 +634,7 @@ addActionHandler('applyBoost', async (global, actions, payload): Promise<void> =
   }
 
   global = getGlobal();
-  const tabState = selectTabState(global, tabId);
+  tabState = selectTabState(global, tabId);
   if (!tabState.boostModal?.boostStatus) return;
   global = updateTabState(global, {
     boostModal: {